31314241444240 has 40 divisors (see below), whose sum is σ = 72806157717048. Its totient is φ = 12525602580480.

The previous prime is 31314241444181. The next prime is 31314241444247. The reversal of 31314241444240 is 4244414241313.

It can be written as a sum of positive squares in 4 ways, for example, as 1702534355344 + 29611707088896 = 1304812^2 + 5441664^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 31314241444240.

It is not an unprimeable number, because it can be changed into a prime (31314241444247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9794934 + ... + 12592426.

Almost surely, 2^{31314241444240} is an apocalyptic number.

It is an amenable number.

31314241444240 is an abundant number, since it is smaller than the sum of its proper divisors (41491916272808).

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

31314241444240 is a wasteful number, since it uses less digits than its factorization.

31314241444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937427 (or 2937421 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 31314241444240 its reverse (4244414241313), we get a palindrome (35558655685553).

The spelling of 31314241444240 in words is "thirty-one trillion, three hundred fourteen billion, two hundred forty-one million, four hundred forty-four thousand, two hundred forty".