31032014240 has 24 divisors (see below), whose sum is σ = 73313134020. Its totient is φ = 12412805632.

The previous prime is 31032014203. The next prime is 31032014243. The reversal of 31032014240 is 4241023013.

It can be written as a sum of positive squares in 2 ways, for example, as 30966144784 + 65869456 = 175972^2 + 8116^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (31032014243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96974885 + ... + 96975204.

Almost surely, 2^31032014240 is an apocalyptic number.

It is an amenable number.

31032014240 is an abundant number, since it is smaller than the sum of its proper divisors (42281119780).

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

31032014240 is a wasteful number, since it uses less digits than its factorization.

31032014240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193950104 (or 193950096 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31032014240 its reverse (4241023013), we get a palindrome (35273037253).

The spelling of 31032014240 in words is "thirty-one billion, thirty-two million, fourteen thousand, two hundred forty".