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1120123131031 = 17232917998179
BaseRepresentation
bin10000010011001100100…
…010101001010010010111
310222002020022021202000001
4100103030202221102113
5121323003010143111
62214324422032131
7143632460343022
oct20231442512227
93862208252001
101120123131031
113a20503401a3
12161106b78647
138181cb34cb8
143c2ddc821b9
151e20c4401c1
hex104cc8a9497

1120123131031 has 16 divisors (see below), whose sum is σ = 1237633516800. Its totient is φ = 1008352464768.

The previous prime is 1120123131007. The next prime is 1120123131053. The reversal of 1120123131031 is 1301313210211.

It is a cyclic number.

It is not a de Polignac number, because 1120123131031 - 221 = 1120121033879 is a prime.

It is a super-2 number, since 2×11201231310312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120123131331) 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 15 ways as a sum of consecutive naturals, for example, 11359900 + ... + 11458078.

It is an arithmetic number, because the mean of its divisors is an integer number (77352094800).

Almost surely, 21120123131031 is an apocalyptic number.

1120123131031 is a deficient number, since it is larger than the sum of its proper divisors (117510385769).

1120123131031 is a wasteful number, since it uses less digits than its factorization.

1120123131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127398.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1120123131031 its reverse (1301313210211), we get a palindrome (2421436341242).

The spelling of 1120123131031 in words is "one trillion, one hundred twenty billion, one hundred twenty-three million, one hundred thirty-one thousand, thirty-one".

Divisors: 1 17 23 391 29179 98179 496043 671117 1669043 2258117 11408989 38387989 2864765041 48701005697 65889595943 1120123131031