210102031312 has 40 divisors (see below), whose sum is σ = 429064080800. Its totient is φ = 99390436992.

The previous prime is 210102031297. The next prime is 210102031313. The reversal of 210102031312 is 213130201012.

It is a super-2 number, since 2×210102031312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102031313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226362 + ... + 686617.

It is an arithmetic number, because the mean of its divisors is an integer number (10726602020).

Almost surely, 2^210102031312 is an apocalyptic number.

It is an amenable number.

210102031312 is an abundant number, since it is smaller than the sum of its proper divisors (218962049488).

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

210102031312 is a wasteful number, since it uses less digits than its factorization.

210102031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913763 (or 913757 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 210102031312 its reverse (213130201012), we get a palindrome (423232232324).

The spelling of 210102031312 in words is "two hundred ten billion, one hundred two million, thirty-one thousand, three hundred twelve".