31316040240224 has 96 divisors (see below), whose sum is σ = 63407508284736. Its totient is φ = 15213734184960.

The previous prime is 31316040240169. The next prime is 31316040240271. The reversal of 31316040240224 is 42204204061313.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3206306189 + ... + 3206315955.

It is an arithmetic number, because the mean of its divisors is an integer number (660494877966).

Almost surely, 2^{31316040240224} 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 31316040240224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31703754142368).

31316040240224 is an abundant number, since it is smaller than the sum of its proper divisors (32091468044512).

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

31316040240224 is a wasteful number, since it uses less digits than its factorization.

31316040240224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13288 (or 13280 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 31316040240224 in words is "thirty-one trillion, three hundred sixteen billion, forty million, two hundred forty thousand, two hundred twenty-four".