13011032232 has 72 divisors (see below), whose sum is σ = 38732936970. Its totient is φ = 3942734400.

The previous prime is 13011032191. The next prime is 13011032239. The reversal of 13011032232 is 23223011031.

13011032232 is a `hidden beast` number, since 1 + 301 + 10 + 322 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11873589156 + 1137443076 = 108966^2 + 33726^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (13011032239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 738019 + ... + 755442.

Almost surely, 2^13011032232 is an apocalyptic number.

13011032232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13011032232 is an abundant number, since it is smaller than the sum of its proper divisors (25721904738).

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

13011032232 is a wasteful number, since it uses less digits than its factorization.

13011032232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493495 (or 1493477 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13011032232 its reverse (23223011031), we get a palindrome (36234043263).

The spelling of 13011032232 in words is "thirteen billion, eleven million, thirty-two thousand, two hundred thirty-two".