31423504520316 has 192 divisors, whose sum is σ = 78973260800000. Its totient is φ = 9695796484608.

The previous prime is 31423504520299. The next prime is 31423504520321. The reversal of 31423504520316 is 61302540532413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 783628035 + ... + 783668133.

Almost surely, 2^{31423504520316} 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 31423504520316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39486630400000).

31423504520316 is an abundant number, since it is smaller than the sum of its proper divisors (47549756279684).

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

31423504520316 is a wasteful number, since it uses less digits than its factorization.

31423504520316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40656 (or 40654 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 31423504520316 in words is "thirty-one trillion, four hundred twenty-three billion, five hundred four million, five hundred twenty thousand, three hundred sixteen".