213121102310 has 16 divisors (see below), whose sum is σ = 406183748256. Its totient is φ = 80233826688.

The previous prime is 213121102301. The next prime is 213121102349. The reversal of 213121102310 is 13201121312.

It is a super-2 number, since 2×213121102310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626826602 + ... + 626826941.

It is an arithmetic number, because the mean of its divisors is an integer number (25386484266).

Almost surely, 2^213121102310 is an apocalyptic number.

213121102310 is a deficient number, since it is larger than the sum of its proper divisors (193062645946).

213121102310 is a wasteful number, since it uses less digits than its factorization.

213121102310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253653567.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 213121102310 its reverse (13201121312), we get a palindrome (226322223622).

The spelling of 213121102310 in words is "two hundred thirteen billion, one hundred twenty-one million, one hundred two thousand, three hundred ten".