31213142314 has 8 divisors (see below), whose sum is σ = 47961657828. Its totient is φ = 15225923040.

The previous prime is 31213142309. The next prime is 31213142339. The reversal of 31213142314 is 41324131213.

It can be written as a sum of positive squares in 2 ways, for example, as 21643411689 + 9569730625 = 147117^2 + 97825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31213142314² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190323957 + ... + 190324120.

Almost surely, 2^31213142314 is an apocalyptic number.

31213142314 is a deficient number, since it is larger than the sum of its proper divisors (16748515514).

31213142314 is a wasteful number, since it uses less digits than its factorization.

31213142314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380648120.

The product of its digits is 1728, while the sum is 25.

Adding to 31213142314 its reverse (41324131213), we get a palindrome (72537273527).

The spelling of 31213142314 in words is "thirty-one billion, two hundred thirteen million, one hundred forty-two thousand, three hundred fourteen".