31503341340 has 96 divisors (see below), whose sum is σ = 99220537920. Its totient is φ = 8400879360.

The previous prime is 31503341323. The next prime is 31503341341. The reversal of 31503341340 is 4314330513.

31503341340 is a `hidden beast` number, since 315 + 0 + 3 + 3 + 4 + 1 + 340 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31503341341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316381 + ... + 403860.

It is an arithmetic number, because the mean of its divisors is an integer number (1033547270).

Almost surely, 2^31503341340 is an apocalyptic number.

31503341340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31503341340 is an abundant number, since it is smaller than the sum of its proper divisors (67717196580).

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

31503341340 is an equidigital number, since it uses as much as digits as its factorization.

31503341340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720271 (or 720251 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 31503341340 its reverse (4314330513), we get a palindrome (35817671853).

The spelling of 31503341340 in words is "thirty-one billion, five hundred three million, three hundred forty-one thousand, three hundred forty".