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131102311122 = 232193710360543
BaseRepresentation
bin111101000011001001…
…1101000001011010010
3110112101202010110012200
41322012103220023102
54121444142423442
6140121053304030
712320560154256
oct1720623501322
9415352113180
10131102311122
1150666922862
12214a9a95016
13c494384433
1464b9a4a266
153624a0434c
hex1e864e82d2

131102311122 has 48 divisors (see below), whose sum is σ = 307086524160. Its totient is φ = 40281787296.

The previous prime is 131102311117. The next prime is 131102311127. The reversal of 131102311122 is 221113201131.

131102311122 is a `hidden beast` number, since 1 + 311 + 0 + 231 + 1 + 122 = 666.

It is an interprime number because it is at equal distance from previous prime (131102311117) and next prime (131102311127).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131102311095 and 131102311104.

It is not an unprimeable number, because it can be changed into a prime (131102311127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5167618 + ... + 5192925.

It is an arithmetic number, because the mean of its divisors is an integer number (6397635920).

Almost surely, 2131102311122 is an apocalyptic number.

131102311122 is an abundant number, since it is smaller than the sum of its proper divisors (175984213038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131102311122 is a wasteful number, since it uses less digits than its factorization.

131102311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360607 (or 10360604 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 131102311122 its reverse (221113201131), we get a palindrome (352215512253).

It can be divided in two parts, 13110 and 2311122, that added together give a palindrome (2324232).

The spelling of 131102311122 in words is "one hundred thirty-one billion, one hundred two million, three hundred eleven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 19 37 38 57 74 111 114 171 222 333 342 666 703 1406 2109 4218 6327 12654 10360543 20721086 31081629 62163258 93244887 186489774 196850317 383340091 393700634 590550951 766680182 1150020273 1181101902 1771652853 2300040546 3450060819 3543305706 6900121638 7283461729 14566923458 21850385187 43700770374 65551155561 131102311122