13031000021064 has 32 divisors (see below), whose sum is σ = 32577638929920. Its totient is φ = 4343648156736.

The previous prime is 13031000021063. The next prime is 13031000021071. The reversal of 13031000021064 is 46012000013031.

It is a self number, because there is not a number n which added to its sum of digits gives 13031000021064.

It is not an unprimeable number, because it can be changed into a prime (13031000021063) 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, 5332569 + ... + 7382295.

It is an arithmetic number, because the mean of its divisors is an integer number (1018051216560).

Almost surely, 2^{13031000021064} is an apocalyptic number.

It is an amenable number.

13031000021064 is an abundant number, since it is smaller than the sum of its proper divisors (19546638908856).

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

13031000021064 is a wasteful number, since it uses less digits than its factorization.

13031000021064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314629 (or 2314625 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13031000021064 its reverse (46012000013031), we get a palindrome (59043000034095).

The spelling of 13031000021064 in words is "thirteen trillion, thirty-one billion, twenty-one thousand, sixty-four".