213131202201 has 48 divisors (see below), whose sum is σ = 325428480000. Its totient is φ = 134236776960.

The previous prime is 213131202187. The next prime is 213131202209. The reversal of 213131202201 is 102202131312.

213131202201 is a `hidden beast` number, since 2 + 131 + 312 + 0 + 220 + 1 = 666.

It is not a de Polignac number, because 213131202201 - 2⁵ = 213131202169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213131202209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1907325 + ... + 2015973.

It is an arithmetic number, because the mean of its divisors is an integer number (6779760000).

Almost surely, 2^213131202201 is an apocalyptic number.

It is an amenable number.

213131202201 is a deficient number, since it is larger than the sum of its proper divisors (112297277799).

213131202201 is a wasteful number, since it uses less digits than its factorization.

213131202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108854 (or 108851 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213131202201 its reverse (102202131312), we get a palindrome (315333333513).

The spelling of 213131202201 in words is "two hundred thirteen billion, one hundred thirty-one million, two hundred two thousand, two hundred one".