10200000120 has 64 divisors (see below), whose sum is σ = 30678804000. Its totient is φ = 2712995328.

The previous prime is 10200000077. The next prime is 10200000143. The reversal of 10200000120 is 2100000201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 10200000099 and 10200000108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62575 + ... + 155934.

Almost surely, 2^10200000120 is an apocalyptic number.

10200000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10200000120 is an abundant number, since it is smaller than the sum of its proper divisors (20478803880).

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

10200000120 is a wasteful number, since it uses less digits than its factorization.

10200000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218912 (or 218908 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 10200000120 its reverse (2100000201), we get a palindrome (12300000321).

The spelling of 10200000120 in words is "ten billion, two hundred million, one hundred twenty", and thus it is an aban number.