10131121232 has 40 divisors (see below), whose sum is σ = 20495786400. Its totient is φ = 4845153152.

The previous prime is 10131121223. The next prime is 10131121327. The reversal of 10131121232 is 23212113101.

It is a self number, because there is not a number n which added to its sum of digits gives 10131121232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52382 + ... + 151677.

It is an arithmetic number, because the mean of its divisors is an integer number (512394660).

Almost surely, 2^10131121232 is an apocalyptic number.

It is an amenable number.

10131121232 is an abundant number, since it is smaller than the sum of its proper divisors (10364665168).

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

10131121232 is a wasteful number, since it uses less digits than its factorization.

10131121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204203 (or 204197 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10131121232 its reverse (23212113101), we get a palindrome (33343234333).

The spelling of 10131121232 in words is "ten billion, one hundred thirty-one million, one hundred twenty-one thousand, two hundred thirty-two".