31444323412 has 12 divisors (see below), whose sum is σ = 55029362976. Its totient is φ = 15721648280.

The previous prime is 31444323409. The next prime is 31444323419. The reversal of 31444323412 is 21432344413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444323419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31587 + ... + 252757.

It is an arithmetic number, because the mean of its divisors is an integer number (4585780248).

Almost surely, 2^31444323412 is an apocalyptic number.

It is an amenable number.

31444323412 is a deficient number, since it is larger than the sum of its proper divisors (23585039564).

31444323412 is a wasteful number, since it uses less digits than its factorization.

31444323412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256718 (or 256716 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 31444323412 its reverse (21432344413), we get a palindrome (52876667825).

The spelling of 31444323412 in words is "thirty-one billion, four hundred forty-four million, three hundred twenty-three thousand, four hundred twelve".