213233200311231 has 16 divisors (see below), whose sum is σ = 315903440008800. Its totient is φ = 142154385744384.

The previous prime is 213233200311223. The next prime is 213233200311247. The reversal of 213233200311231 is 132113002332312.

213233200311231 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 3 + 320 + 0 + 311 + 23 + 1 = 666.

It is not a de Polignac number, because 213233200311231 - 2³ = 213233200311223 is a prime.

It is a super-2 number, since 2×213233200311231² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213233200311195 and 213233200311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233200311031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26407516 + ... + 33523473.

It is an arithmetic number, because the mean of its divisors is an integer number (19743965000550).

Almost surely, 2^{213233200311231} is an apocalyptic number.

213233200311231 is a deficient number, since it is larger than the sum of its proper divisors (102670239697569).

213233200311231 is a wasteful number, since it uses less digits than its factorization.

213233200311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60062775 (or 60062769 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 213233200311231 its reverse (132113002332312), we get a palindrome (345346202643543).

The spelling of 213233200311231 in words is "two hundred thirteen trillion, two hundred thirty-three billion, two hundred million, three hundred eleven thousand, two hundred thirty-one".