13042521420 has 24 divisors (see below), whose sum is σ = 36519060144. Its totient is φ = 3478005696.

The previous prime is 13042521419. The next prime is 13042521461. The reversal of 13042521420 is 2412524031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108687619 + ... + 108687738.

It is an arithmetic number, because the mean of its divisors is an integer number (1521627506).

Almost surely, 2^13042521420 is an apocalyptic number.

13042521420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13042521420 is an abundant number, since it is smaller than the sum of its proper divisors (23476538724).

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

13042521420 is a wasteful number, since it uses less digits than its factorization.

13042521420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217375369 (or 217375367 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 13042521420 in words is "thirteen billion, forty-two million, five hundred twenty-one thousand, four hundred twenty".