20120120520000 has 140 divisors (see below), whose sum is σ = 66521813530656. Its totient is φ = 5365365440000.

The previous prime is 20120120519969. The next prime is 20120120520041. The reversal of 20120120520000 is 2502102102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 83713836 + ... + 83953835.

Almost surely, 2^{20120120520000} is an apocalyptic number.

20120120520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120120520000 is an abundant number, since it is smaller than the sum of its proper divisors (46401693010656).

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

20120120520000 is an equidigital number, since it uses as much as digits as its factorization.

20120120520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167667706 (or 167667681 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20120120520000 its reverse (2502102102), we get a palindrome (20122622622102).

The spelling of 20120120520000 in words is "twenty trillion, one hundred twenty billion, one hundred twenty million, five hundred twenty thousand".