13031131112 has 16 divisors (see below), whose sum is σ = 24435686340. Its totient is φ = 6514948096.

The previous prime is 13031131093. The next prime is 13031131151. The reversal of 13031131112 is 21113113031.

13031131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11454564676 + 1576566436 = 107026^2 + 39706^2 .

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 3 ways as a sum of consecutive naturals, for example, 19658 + ... + 162630.

Almost surely, 2^13031131112 is an apocalyptic number.

It is an amenable number.

13031131112 is a deficient number, since it is larger than the sum of its proper divisors (11404555228).

13031131112 is a wasteful number, since it uses less digits than its factorization.

13031131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154372 (or 154368 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13031131112 its reverse (21113113031), we get a palindrome (34144244143).

The spelling of 13031131112 in words is "thirteen billion, thirty-one million, one hundred thirty-one thousand, one hundred twelve".