104020542520 has 16 divisors (see below), whose sum is σ = 234046220760. Its totient is φ = 41608216992.

The previous prime is 104020542517. The next prime is 104020542529. The reversal of 104020542520 is 25245020401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104020542529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300256742 + ... + 1300256821.

Almost surely, 2^104020542520 is an apocalyptic number.

104020542520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104020542520 is an abundant number, since it is smaller than the sum of its proper divisors (130025678240).

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

104020542520 is a wasteful number, since it uses less digits than its factorization.

104020542520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600513574 (or 2600513570 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 104020542520 its reverse (25245020401), we get a palindrome (129265562921).

The spelling of 104020542520 in words is "one hundred four billion, twenty million, five hundred forty-two thousand, five hundred twenty".