20125453120 has 28 divisors (see below), whose sum is σ = 47923736004. Its totient is φ = 8050181120.

The previous prime is 20125453097. The next prime is 20125453133. The reversal of 20125453120 is 2135452102.

It can be written as a sum of positive squares in 2 ways, for example, as 6072773184 + 14052679936 = 77928^2 + 118544^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31445701 + ... + 31446340.

Almost surely, 2^20125453120 is an apocalyptic number.

20125453120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20125453120 is an abundant number, since it is smaller than the sum of its proper divisors (27798282884).

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

20125453120 is an equidigital number, since it uses as much as digits as its factorization.

20125453120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62892058 (or 62892048 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 20125453120 in words is "twenty billion, one hundred twenty-five million, four hundred fifty-three thousand, one hundred twenty".