202102013123120 has 80 divisors (see below), whose sum is σ = 530280203778720. Its totient is φ = 70957446604800.

The previous prime is 202102013123111. The next prime is 202102013123287. The reversal of 202102013123120 is 21321310201202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 202102013123092 and 202102013123101.

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, 3959653421 + ... + 3959704460.

It is an arithmetic number, because the mean of its divisors is an integer number (6628502547234).

Almost surely, 2^{202102013123120} is an apocalyptic number.

202102013123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202102013123120 is an abundant number, since it is smaller than the sum of its proper divisors (328178190655600).

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

202102013123120 is a wasteful number, since it uses less digits than its factorization.

202102013123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7919357934 (or 7919357928 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202102013123120 its reverse (21321310201202), we get a palindrome (223423323324322).

The spelling of 202102013123120 in words is "two hundred two trillion, one hundred two billion, thirteen million, one hundred twenty-three thousand, one hundred twenty".