31431224014312 has 32 divisors (see below), whose sum is σ = 61506075254400. Its totient is φ = 15029830661824.

The previous prime is 31431224014303. The next prime is 31431224014321. The reversal of 31431224014312 is 21341042213413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31431224014303) and next prime (31431224014321).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13057348 + ... + 15276019.

It is an arithmetic number, because the mean of its divisors is an integer number (1922064851700).

Almost surely, 2^{31431224014312} is an apocalyptic number.

It is an amenable number.

31431224014312 is a deficient number, since it is larger than the sum of its proper divisors (30074851240088).

31431224014312 is a wasteful number, since it uses less digits than its factorization.

31431224014312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28339425 (or 28339421 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 31431224014312 its reverse (21341042213413), we get a palindrome (52772266227725).

The spelling of 31431224014312 in words is "thirty-one trillion, four hundred thirty-one billion, two hundred twenty-four million, fourteen thousand, three hundred twelve".