202102310030124 has 48 divisors (see below), whose sum is σ = 567304729913600. Its totient is φ = 54704384669376.

The previous prime is 202102310030123. The next prime is 202102310030149. The reversal of 202102310030124 is 421030013201202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 202102310030124.

It is not an unprimeable number, because it can be changed into a prime (202102310030123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63315258439 + ... + 63315261630.

Almost surely, 2^{202102310030124} is an apocalyptic number.

It is an amenable number.

202102310030124 is an abundant number, since it is smaller than the sum of its proper divisors (365202419883476).

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

202102310030124 is a wasteful number, since it uses less digits than its factorization.

202102310030124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126630520102 (or 126630520100 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 202102310030124 its reverse (421030013201202), we get a palindrome (623132323231326).

The spelling of 202102310030124 in words is "two hundred two trillion, one hundred two billion, three hundred ten million, thirty thousand, one hundred twenty-four".