313131412 has 24 divisors (see below), whose sum is σ = 599548320. Its totient is φ = 141915360.

The previous prime is 313131389. The next prime is 313131451. The reversal of 313131412 is 214131313.

It is a super-2 number, since 2×313131412² = 196102562362227488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313131412.

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, 5014 + ... + 25522.

It is an arithmetic number, because the mean of its divisors is an integer number (24981180).

Almost surely, 2^313131412 is an apocalyptic number.

It is an amenable number.

313131412 is a deficient number, since it is larger than the sum of its proper divisors (286416908).

313131412 is a wasteful number, since it uses less digits than its factorization.

313131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20871 (or 20869 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 313131412 is about 17695.5195459190. The cubic root of 313131412 is about 679.0611409000.

Adding to 313131412 its reverse (214131313), we get a palindrome (527262725).

Subtracting from 313131412 its reverse (214131313), we obtain a palindrome (99000099).

It can be divided in two parts, 3131 and 31412, that added together give a palindrome (34543).

The spelling of 313131412 in words is "three hundred thirteen million, one hundred thirty-one thousand, four hundred twelve".