13031052636 has 48 divisors (see below), whose sum is σ = 36793564416. Its totient is φ = 3504148224.

The previous prime is 13031052631. The next prime is 13031052649. The reversal of 13031052636 is 63625013031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031052631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4561266 + ... + 4564121.

It is an arithmetic number, because the mean of its divisors is an integer number (766532592).

Almost surely, 2^13031052636 is an apocalyptic number.

It is an amenable number.

13031052636 is an abundant number, since it is smaller than the sum of its proper divisors (23762511780).

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

13031052636 is a wasteful number, since it uses less digits than its factorization.

13031052636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125418 (or 9125416 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 13031052636 its reverse (63625013031), we get a palindrome (76656065667).

The spelling of 13031052636 in words is "thirteen billion, thirty-one million, fifty-two thousand, six hundred thirty-six".