31312010214 has 16 divisors (see below), whose sum is σ = 69582245040. Its totient is φ = 10437336720.

The previous prime is 31312010179. The next prime is 31312010221. The reversal of 31312010214 is 41201021313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

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, 289925967 + ... + 289926074.

It is an arithmetic number, because the mean of its divisors is an integer number (4348890315).

Almost surely, 2^31312010214 is an apocalyptic number.

31312010214 is an abundant number, since it is smaller than the sum of its proper divisors (38270234826).

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

31312010214 is a wasteful number, since it uses less digits than its factorization.

31312010214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579852052 (or 579852046 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31312010214 its reverse (41201021313), we get a palindrome (72513031527).

The spelling of 31312010214 in words is "thirty-one billion, three hundred twelve million, ten thousand, two hundred fourteen".