13231211012 has 24 divisors (see below), whose sum is σ = 24237614016. Its totient is φ = 6307994528.

The previous prime is 13231210991. The next prime is 13231211017. The reversal of 13231211012 is 21011213231.

It is not an unprimeable number, because it can be changed into a prime (13231211017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197678 + ... + 256005.

It is an arithmetic number, because the mean of its divisors is an integer number (1009900584).

Almost surely, 2^13231211012 is an apocalyptic number.

It is an amenable number.

13231211012 is a deficient number, since it is larger than the sum of its proper divisors (11006403004).

13231211012 is a wasteful number, since it uses less digits than its factorization.

13231211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454027 (or 454025 counting only the distinct ones).

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

Adding to 13231211012 its reverse (21011213231), we get a palindrome (34242424243).

The spelling of 13231211012 in words is "thirteen billion, two hundred thirty-one million, two hundred eleven thousand, twelve".