213131122020310 has 64 divisors (see below), whose sum is σ = 414578190866112. Its totient is φ = 78422307134976.

The previous prime is 213131122020221. The next prime is 213131122020403. The reversal of 213131122020310 is 13020221131312.

It is a super-2 number, since 2×213131122020310² (a number of 29 digits) contains 22 as substring.

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, 43638684 + ... + 48276256.

It is an arithmetic number, because the mean of its divisors is an integer number (6477784232283).

Almost surely, 2^{213131122020310} is an apocalyptic number.

213131122020310 is a deficient number, since it is larger than the sum of its proper divisors (201447068845802).

213131122020310 is a wasteful number, since it uses less digits than its factorization.

213131122020310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638817.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 213131122020310 its reverse (13020221131312), we get a palindrome (226151343151622).

The spelling of 213131122020310 in words is "two hundred thirteen trillion, one hundred thirty-one billion, one hundred twenty-two million, twenty thousand, three hundred ten".