12013213311232 has 72 divisors (see below), whose sum is σ = 27671212639616. Its totient is φ = 5098534281216.

The previous prime is 12013213311227. The next prime is 12013213311277. The reversal of 12013213311232 is 23211331231021.

It is a super-2 number, since 2×12013213311232² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12013213311197 and 12013213311206.

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, 32358153 + ... + 32727304.

Almost surely, 2^{12013213311232} is an apocalyptic number.

It is an amenable number.

12013213311232 is an abundant number, since it is smaller than the sum of its proper divisors (15657999328384).

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

12013213311232 is an equidigital number, since it uses as much as digits as its factorization.

12013213311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65085583 (or 65085569 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12013213311232 its reverse (23211331231021), we get a palindrome (35224544542253).

The spelling of 12013213311232 in words is "twelve trillion, thirteen billion, two hundred thirteen million, three hundred eleven thousand, two hundred thirty-two".