31314022739720 has 128 divisors (see below), whose sum is σ = 81684374400000. Its totient is φ = 10581700626432.

The previous prime is 31314022739689. The next prime is 31314022739737. The reversal of 31314022739720 is 2793722041313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11342306 + ... + 13830254.

It is an arithmetic number, because the mean of its divisors is an integer number (638159175000).

Almost surely, 2^{31314022739720} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31314022739720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40842187200000).

31314022739720 is an abundant number, since it is smaller than the sum of its proper divisors (50370351660280).

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

31314022739720 is a wasteful number, since it uses less digits than its factorization.

31314022739720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488615 (or 2488611 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 31314022739720 in words is "thirty-one trillion, three hundred fourteen billion, twenty-two million, seven hundred thirty-nine thousand, seven hundred twenty".