31431065624312 has 16 divisors (see below), whose sum is σ = 59454781215840. Its totient is φ = 15576457300096.

The previous prime is 31431065624267. The next prime is 31431065624323. The reversal of 31431065624312 is 21342656013413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31431065624312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17384438048 + ... + 17384439855.

It is an arithmetic number, because the mean of its divisors is an integer number (3715923825990).

Almost surely, 2^{31431065624312} is an apocalyptic number.

It is an amenable number.

31431065624312 is a deficient number, since it is larger than the sum of its proper divisors (28023715591528).

31431065624312 is a wasteful number, since it uses less digits than its factorization.

31431065624312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34768878022 (or 34768878018 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 31431065624312 in words is "thirty-one trillion, four hundred thirty-one billion, sixty-five million, six hundred twenty-four thousand, three hundred twelve".