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101131211230 = 2572773266999
BaseRepresentation
bin101111000101111100…
…0111101000111011110
3100200001000012211022221
41132023320331013132
53124104042224410
6114243052455554
710210061053300
oct1361370750736
9320030184287
10101131211230
1139986a28915
121772477a5ba
1396c8c9a7ba
144c753a5970
15296d6d84da
hex178be3d1de

101131211230 has 48 divisors (see below), whose sum is σ = 212031108000. Its totient is φ = 34628572608.

The previous prime is 101131211197. The next prime is 101131211231. The reversal of 101131211230 is 32112131101.

It is a happy number.

It is a super-2 number, since 2×1011312112302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101131211231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245271 + ... + 512269.

It is an arithmetic number, because the mean of its divisors is an integer number (4417314750).

Almost surely, 2101131211230 is an apocalyptic number.

101131211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101131211230 is an abundant number, since it is smaller than the sum of its proper divisors (110899896770).

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

101131211230 is a wasteful number, since it uses less digits than its factorization.

101131211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267793 (or 267786 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101131211230 its reverse (32112131101), we get a palindrome (133243342331).

The spelling of 101131211230 in words is "one hundred one billion, one hundred thirty-one million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 773 1546 3865 5411 7730 10822 27055 37877 54110 75754 189385 266999 378770 533998 1334995 1868993 2669990 3737986 9344965 13082951 18689930 26165902 65414755 130829510 206390227 412780454 1031951135 1444731589 2063902270 2889463178 7223657945 10113121123 14447315890 20226242246 50565605615 101131211230