213231312110 has 64 divisors (see below), whose sum is σ = 398556764928. Its totient is φ = 82080000000.

The previous prime is 213231312079. The next prime is 213231312131. The reversal of 213231312110 is 11213132312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11212610 + ... + 11231610.

It is an arithmetic number, because the mean of its divisors is an integer number (6227449452).

Almost surely, 2^213231312110 is an apocalyptic number.

213231312110 is a deficient number, since it is larger than the sum of its proper divisors (185325452818).

213231312110 is a wasteful number, since it uses less digits than its factorization.

213231312110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19421.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213231312110 its reverse (11213132312), we get a palindrome (224444444422).

The spelling of 213231312110 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred twelve thousand, one hundred ten".