10200020120 has 16 divisors (see below), whose sum is σ = 22950045360. Its totient is φ = 4080008032.

The previous prime is 10200020107. The next prime is 10200020143. The reversal of 10200020120 is 2102000201.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 10200020098 and 10200020107.

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, 127500212 + ... + 127500291.

It is an arithmetic number, because the mean of its divisors is an integer number (1434377835).

Almost surely, 2^10200020120 is an apocalyptic number.

10200020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10200020120 is an abundant number, since it is smaller than the sum of its proper divisors (12750025240).

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

10200020120 is a wasteful number, since it uses less digits than its factorization.

10200020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255000514 (or 255000510 counting only the distinct ones).

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

Adding to 10200020120 its reverse (2102000201), we get a palindrome (12302020321).

The spelling of 10200020120 in words is "ten billion, two hundred million, twenty thousand, one hundred twenty".