31210111412 has 24 divisors (see below), whose sum is σ = 54745324200. Its totient is φ = 15568622720.

The previous prime is 31210111369. The next prime is 31210111451. The reversal of 31210111412 is 21411101213.

It can be written as a sum of positive squares in 4 ways, for example, as 17606416 + 31192504996 = 4196^2 + 176614^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7174214 + ... + 7178562.

It is an arithmetic number, because the mean of its divisors is an integer number (2281055175).

Almost surely, 2^31210111412 is an apocalyptic number.

It is an amenable number.

31210111412 is a deficient number, since it is larger than the sum of its proper divisors (23535212788).

31210111412 is a wasteful number, since it uses less digits than its factorization.

31210111412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131 (or 8129 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 31210111412 its reverse (21411101213), we get a palindrome (52621212625).

The spelling of 31210111412 in words is "thirty-one billion, two hundred ten million, one hundred eleven thousand, four hundred twelve".