31323278839104 has 168 divisors, whose sum is σ = 103181832711360. Its totient is φ = 8899510781952.

The previous prime is 31323278839067. The next prime is 31323278839133. The reversal of 31323278839104 is 40193887232313.

It is a happy number.

31323278839104 is a `hidden beast` number, since 3 + 1 + 323 + 278 + 8 + 39 + 10 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×31323278839104² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20978469 + ... + 22421924.

Almost surely, 2^{31323278839104} is an apocalyptic number.

It is an amenable number.

31323278839104 is an abundant number, since it is smaller than the sum of its proper divisors (71858553872256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31323278839104 is a wasteful number, since it uses less digits than its factorization.

31323278839104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43400597 (or 43400584 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 31323278839104 in words is "thirty-one trillion, three hundred twenty-three billion, two hundred seventy-eight million, eight hundred thirty-nine thousand, one hundred four".