213131303023310 has 128 divisors (see below), whose sum is σ = 444310649395200. Its totient is φ = 72101953437696.

The previous prime is 213131303023307. The next prime is 213131303023319. The reversal of 213131303023310 is 13320303131312.

It is a super-2 number, since 2×213131303023310² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213131303023310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213131303023319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1573286639 + ... + 1573422101.

It is an arithmetic number, because the mean of its divisors is an integer number (3471176948400).

Almost surely, 2^{213131303023310} is an apocalyptic number.

213131303023310 is an abundant number, since it is smaller than the sum of its proper divisors (231179346371890).

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

213131303023310 is a wasteful number, since it uses less digits than its factorization.

213131303023310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136482.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 213131303023310 its reverse (13320303131312), we get a palindrome (226451606154622).

The spelling of 213131303023310 in words is "two hundred thirteen trillion, one hundred thirty-one billion, three hundred three million, twenty-three thousand, three hundred ten".