213323188767138 has 24 divisors (see below), whose sum is σ = 486526570873200. Its totient is φ = 67365217505304.

The previous prime is 213323188767109. The next prime is 213323188767151. The reversal of 213323188767138 is 831767881323312.

213323188767138 is a `hidden beast` number, since 2 + 1 + 332 + 31 + 8 + 87 + 67 + 138 = 666.

It is a super-2 number, since 2×213323188767138² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

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, 311876006628 + ... + 311876007311.

It is an arithmetic number, because the mean of its divisors is an integer number (20271940453050).

Almost surely, 2^{213323188767138} is an apocalyptic number.

213323188767138 is an abundant number, since it is smaller than the sum of its proper divisors (273203382106062).

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

213323188767138 is a wasteful number, since it uses less digits than its factorization.

213323188767138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623752013966 (or 623752013963 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 213323188767138 in words is "two hundred thirteen trillion, three hundred twenty-three billion, one hundred eighty-eight million, seven hundred sixty-seven thousand, one hundred thirty-eight".