213132321099 has 12 divisors (see below), whose sum is σ = 307861848112. Its totient is φ = 142086344400.

The previous prime is 213132321071. The next prime is 213132321113. The reversal of 213132321099 is 990123231312.

213132321099 is a `hidden beast` number, since 2 + 1 + 31 + 323 + 210 + 99 = 666.

It is not a de Polignac number, because 213132321099 - 2²³ = 213123932491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213132321299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092789 + ... + 1272969.

Almost surely, 2^213132321099 is an apocalyptic number.

213132321099 is a deficient number, since it is larger than the sum of its proper divisors (94729527013).

213132321099 is a wasteful number, since it uses less digits than its factorization.

213132321099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311618 (or 311615 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 213132321099 in words is "two hundred thirteen billion, one hundred thirty-two million, three hundred twenty-one thousand, ninety-nine".