13313231012 has 12 divisors (see below), whose sum is σ = 24668634060. Its totient is φ = 6265049856.

The previous prime is 13313231003. The next prime is 13313231021. The reversal of 13313231012 is 21013231331.

It is an interprime number because it is at equal distance from previous prime (13313231003) and next prime (13313231021).

It can be written as a sum of positive squares in 2 ways, for example, as 8702277796 + 4610953216 = 93286^2 + 67904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97891337 + ... + 97891472.

It is an arithmetic number, because the mean of its divisors is an integer number (2055719505).

Almost surely, 2^13313231012 is an apocalyptic number.

It is an amenable number.

13313231012 is a deficient number, since it is larger than the sum of its proper divisors (11355403048).

13313231012 is a wasteful number, since it uses less digits than its factorization.

13313231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195782830 (or 195782828 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13313231012 its reverse (21013231331), we get a palindrome (34326462343).

The spelling of 13313231012 in words is "thirteen billion, three hundred thirteen million, two hundred thirty-one thousand, twelve".