202130400400 has 60 divisors (see below), whose sum is σ = 487553263344. Its totient is φ = 80530000000.

The previous prime is 202130400383. The next prime is 202130400487. The reversal of 202130400400 is 4004031202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 906226 + ... + 1107025.

Almost surely, 2^202130400400 is an apocalyptic number.

202130400400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202130400400 is an abundant number, since it is smaller than the sum of its proper divisors (285422862944).

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

202130400400 is a wasteful number, since it uses less digits than its factorization.

202130400400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013520 (or 2013509 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 202130400400 its reverse (4004031202), we get a palindrome (206134431602).

The spelling of 202130400400 in words is "two hundred two billion, one hundred thirty million, four hundred thousand, four hundred".