3131023454540 has 48 divisors (see below), whose sum is σ = 6601651428960. Its totient is φ = 1247370931200.

The previous prime is 3131023454509. The next prime is 3131023454623. The reversal of 3131023454540 is 454543201313.

It is a super-2 number, since 2×3131023454540² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3131023454540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4938131 + ... + 5535989.

It is an arithmetic number, because the mean of its divisors is an integer number (137534404770).

Almost surely, 2^{3131023454540} is an apocalyptic number.

It is an amenable number.

3131023454540 is an abundant number, since it is smaller than the sum of its proper divisors (3470627974420).

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

3131023454540 is a wasteful number, since it uses less digits than its factorization.

3131023454540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598922 (or 598920 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 3131023454540 its reverse (454543201313), we get a palindrome (3585566655853).

The spelling of 3131023454540 in words is "three trillion, one hundred thirty-one billion, twenty-three million, four hundred fifty-four thousand, five hundred forty".