31253131412 has 12 divisors (see below), whose sum is σ = 54694960320. Its totient is φ = 15625999896.

The previous prime is 31253131397. The next prime is 31253131451. The reversal of 31253131412 is 21413135213.

It is a super-2 number, since 2×31253131412² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868 + ... + 250019.

It is an arithmetic number, because the mean of its divisors is an integer number (4557913360).

Almost surely, 2^31253131412 is an apocalyptic number.

It is an amenable number.

31253131412 is a deficient number, since it is larger than the sum of its proper divisors (23441828908).

31253131412 is a wasteful number, since it uses less digits than its factorization.

31253131412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282910 (or 282908 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

Adding to 31253131412 its reverse (21413135213), we get a palindrome (52666266625).

The spelling of 31253131412 in words is "thirty-one billion, two hundred fifty-three million, one hundred thirty-one thousand, four hundred twelve".