31240441013553 has 24 divisors (see below), whose sum is σ = 45887533991208. Its totient is φ = 20476859519232.

The previous prime is 31240441013539. The next prime is 31240441013569. The reversal of 31240441013553 is 35531014404213.

31240441013553 is a `hidden beast` number, since 3 + 1 + 2 + 40 + 44 + 10 + 13 + 553 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 123757611264 + 31116683402289 = 351792^2 + 5578233^2 .

It is not a de Polignac number, because 31240441013553 - 2³⁰ = 31239367271729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31240441012553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74791950 + ... + 75208487.

It is an arithmetic number, because the mean of its divisors is an integer number (1911980582967).

Almost surely, 2^{31240441013553} is an apocalyptic number.

It is an amenable number.

31240441013553 is a deficient number, since it is larger than the sum of its proper divisors (14647092977655).

31240441013553 is a wasteful number, since it uses less digits than its factorization.

31240441013553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150000833 (or 150000830 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 31240441013553 its reverse (35531014404213), we get a palindrome (66771455417766).

The spelling of 31240441013553 in words is "thirty-one trillion, two hundred forty billion, four hundred forty-one million, thirteen thousand, five hundred fifty-three".