12013231032 has 48 divisors (see below), whose sum is σ = 35493639480. Its totient is φ = 3640372800.

The previous prime is 12013231019. The next prime is 12013231091. The reversal of 12013231032 is 23013231021.

12013231032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 12013230996 and 12013231014.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7583319 + ... + 7584902.

Almost surely, 2^12013231032 is an apocalyptic number.

12013231032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12013231032 is an abundant number, since it is smaller than the sum of its proper divisors (23480408448).

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

12013231032 is a wasteful number, since it uses less digits than its factorization.

12013231032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15168244 (or 15168237 counting only the distinct ones).

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

Adding to 12013231032 its reverse (23013231021), we get a palindrome (35026462053).

The spelling of 12013231032 in words is "twelve billion, thirteen million, two hundred thirty-one thousand, thirty-two".