31121414312 has 32 divisors (see below), whose sum is σ = 59299960680. Its totient is φ = 15309158400.

The previous prime is 31121414281. The next prime is 31121414329. The reversal of 31121414312 is 21341412113.

It can be written as a sum of positive squares in 4 ways, for example, as 29088666916 + 2032747396 = 170554^2 + 45086^2 .

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, 167738 + ... + 300630.

Almost surely, 2^31121414312 is an apocalyptic number.

It is an amenable number.

31121414312 is a deficient number, since it is larger than the sum of its proper divisors (28178546368).

31121414312 is a wasteful number, since it uses less digits than its factorization.

31121414312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133373 (or 133369 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 31121414312 its reverse (21341412113), we get a palindrome (52462826425).

The spelling of 31121414312 in words is "thirty-one billion, one hundred twenty-one million, four hundred fourteen thousand, three hundred twelve".