20120973120 has 84 divisors (see below), whose sum is σ = 69207773700. Its totient is φ = 5365592064.

The previous prime is 20120973083. The next prime is 20120973143. The reversal of 20120973120 is 2137902102.

It can be written as a sum of positive squares in 2 ways, for example, as 3031163136 + 17089809984 = 55056^2 + 130728^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3490345 + ... + 3496104.

Almost surely, 2^20120973120 is an apocalyptic number.

20120973120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120973120 is an abundant number, since it is smaller than the sum of its proper divisors (49086800580).

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

20120973120 is a wasteful number, since it uses less digits than its factorization.

20120973120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6986472 (or 6986459 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The spelling of 20120973120 in words is "twenty billion, one hundred twenty million, nine hundred seventy-three thousand, one hundred twenty".