20000020120 has 32 divisors (see below), whose sum is σ = 45006645600. Its totient is φ = 7998834688.

The previous prime is 20000020099. The next prime is 20000020123. The reversal of 20000020120 is 2102000002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000020123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271416 + ... + 337144.

It is an arithmetic number, because the mean of its divisors is an integer number (1406457675).

Almost surely, 2^20000020120 is an apocalyptic number.

20000020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000020120 is an abundant number, since it is smaller than the sum of its proper divisors (25006625480).

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

20000020120 is a wasteful number, since it uses less digits than its factorization.

20000020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73347 (or 73343 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20000020120 its reverse (2102000002), we get a palindrome (22102020122).

The spelling of 20000020120 in words is "twenty billion, twenty thousand, one hundred twenty".