13031211112 has 16 divisors (see below), whose sum is σ = 24444555300. Its totient is φ = 6512663040.

The previous prime is 13031211107. The next prime is 13031211143. The reversal of 13031211112 is 21111213031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12560581476 + 470629636 = 112074^2 + 21694^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348937 + ... + 384472.

Almost surely, 2^13031211112 is an apocalyptic number.

It is an amenable number.

13031211112 is a deficient number, since it is larger than the sum of its proper divisors (11413344188).

13031211112 is a wasteful number, since it uses less digits than its factorization.

13031211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735636 (or 735632 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13031211112 its reverse (21111213031), we get a palindrome (34142424143).

The spelling of 13031211112 in words is "thirteen billion, thirty-one million, two hundred eleven thousand, one hundred twelve".