13013521400 has 48 divisors (see below), whose sum is σ = 33007028040. Its totient is φ = 4732188800.

The previous prime is 13013521399. The next prime is 13013521429. The reversal of 13013521400 is 412531031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2955419 + ... + 2959818.

Almost surely, 2^13013521400 is an apocalyptic number.

13013521400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13013521400 is an abundant number, since it is smaller than the sum of its proper divisors (19993506640).

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

13013521400 is a wasteful number, since it uses less digits than its factorization.

13013521400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915264 (or 5915255 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 13013521400 in words is "thirteen billion, thirteen million, five hundred twenty-one thousand, four hundred".