104200242520 has 128 divisors (see below), whose sum is σ = 260545559040. Its totient is φ = 37189232640.

The previous prime is 104200242431. The next prime is 104200242533. The reversal of 104200242520 is 25242002401.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 104200242491 and 104200242500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5110987 + ... + 5131333.

It is an arithmetic number, because the mean of its divisors is an integer number (2035512180).

Almost surely, 2^104200242520 is an apocalyptic number.

104200242520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104200242520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130272779520).

104200242520 is an abundant number, since it is smaller than the sum of its proper divisors (156345316520).

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

104200242520 is a wasteful number, since it uses less digits than its factorization.

104200242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20585 (or 20581 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 104200242520 its reverse (25242002401), we get a palindrome (129442244921).

The spelling of 104200242520 in words is "one hundred four billion, two hundred million, two hundred forty-two thousand, five hundred twenty".