31343321112345 has 24 divisors (see below), whose sum is σ = 59267370831552. Its totient is φ = 15196761751200.

The previous prime is 31343321112241. The next prime is 31343321112373. The reversal of 31343321112345 is 54321112334313.

31343321112345 is a `hidden beast` number, since 3 + 1 + 3 + 433 + 211 + 1 + 2 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 31343321112345 - 2¹³ = 31343321104153 is a prime.

It is a super-2 number, since 2×31343321112345² (a number of 28 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 31659919821 + ... + 31659920810.

It is an arithmetic number, because the mean of its divisors is an integer number (2469473784648).

Almost surely, 2^{31343321112345} is an apocalyptic number.

It is an amenable number.

31343321112345 is a deficient number, since it is larger than the sum of its proper divisors (27924049719207).

31343321112345 is a wasteful number, since it uses less digits than its factorization.

31343321112345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63319840653 (or 63319840650 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

Adding to 31343321112345 its reverse (54321112334313), we get a palindrome (85664433446658).

The spelling of 31343321112345 in words is "thirty-one trillion, three hundred forty-three billion, three hundred twenty-one million, one hundred twelve thousand, three hundred forty-five".