202421300100 has 72 divisors (see below), whose sum is σ = 620123622048. Its totient is φ = 50803776000.

The previous prime is 202421300077. The next prime is 202421300111. The reversal of 202421300100 is 1003124202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202421300100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19840126 + ... + 19850325.

It is an arithmetic number, because the mean of its divisors is an integer number (8612828084).

Almost surely, 2^202421300100 is an apocalyptic number.

202421300100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202421300100 is an abundant number, since it is smaller than the sum of its proper divisors (417702321948).

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

202421300100 is a wasteful number, since it uses less digits than its factorization.

202421300100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39690485 (or 39690478 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202421300100 its reverse (1003124202), we get a palindrome (203424424302).

The spelling of 202421300100 in words is "two hundred two billion, four hundred twenty-one million, three hundred thousand, one hundred".