202130400402 has 40 divisors (see below), whose sum is σ = 517624943616. Its totient is φ = 57751542648.

The previous prime is 202130400383. The next prime is 202130400487. The reversal of 202130400402 is 204004031202.

202130400402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 89121618 + ... + 89123885.

Almost surely, 2^202130400402 is an apocalyptic number.

202130400402 is an abundant number, since it is smaller than the sum of its proper divisors (315494543214).

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

202130400402 is a wasteful number, since it uses less digits than its factorization.

202130400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178245524 (or 178245515 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 202130400402 its reverse (204004031202), we get a palindrome (406134431604).

The spelling of 202130400402 in words is "two hundred two billion, one hundred thirty million, four hundred thousand, four hundred two".