213112131208 has 32 divisors (see below), whose sum is σ = 408210969600. Its totient is φ = 104257249792.

The previous prime is 213112131181. The next prime is 213112131209. The reversal of 213112131208 is 802131211312.

It is not an unprimeable number, because it can be changed into a prime (213112131209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178616 + ... + 1347352.

It is an arithmetic number, because the mean of its divisors is an integer number (12756592800).

Almost surely, 2^213112131208 is an apocalyptic number.

It is an amenable number.

213112131208 is a deficient number, since it is larger than the sum of its proper divisors (195098838392).

213112131208 is a wasteful number, since it uses less digits than its factorization.

213112131208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172149 (or 172145 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 213112131208 in words is "two hundred thirteen billion, one hundred twelve million, one hundred thirty-one thousand, two hundred eight".