13213534144 has 14 divisors (see below), whose sum is σ = 26220606944. Its totient is φ = 6606767040.

The previous prime is 13213534133. The next prime is 13213534231. The reversal of 13213534144 is 44143531231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103230672 + ... + 103230799.

It is an arithmetic number, because the mean of its divisors is an integer number (1872900496).

Almost surely, 2^13213534144 is an apocalyptic number.

It is an amenable number.

13213534144 is a deficient number, since it is larger than the sum of its proper divisors (13007072800).

13213534144 is an equidigital number, since it uses as much as digits as its factorization.

13213534144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206461483 (or 206461473 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The spelling of 13213534144 in words is "thirteen billion, two hundred thirteen million, five hundred thirty-four thousand, one hundred forty-four".