31304333332040 has 64 divisors (see below), whose sum is σ = 74142586008000. Its totient is φ = 11862575712000.

The previous prime is 31304333331941. The next prime is 31304333332043. The reversal of 31304333332040 is 4023333340313.

It is a happy number.

It is a super-2 number, since 2×31304333332040² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31304333331988 and 31304333332006.

It is not an unprimeable number, because it can be changed into a prime (31304333332043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127389290 + ... + 127634790.

It is an arithmetic number, because the mean of its divisors is an integer number (1158477906375).

Almost surely, 2^{31304333332040} is an apocalyptic number.

It is an amenable number.

31304333332040 is an abundant number, since it is smaller than the sum of its proper divisors (42838252675960).

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

31304333332040 is a wasteful number, since it uses less digits than its factorization.

31304333332040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413310 (or 413306 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 32.

Adding to 31304333332040 its reverse (4023333340313), we get a palindrome (35327666672353).

The spelling of 31304333332040 in words is "thirty-one trillion, three hundred four billion, three hundred thirty-three million, three hundred thirty-two thousand, forty".