3131242204400 has 30 divisors (see below), whose sum is σ = 7522809397032. Its totient is φ = 1252496881600.

The previous prime is 3131242204381. The next prime is 3131242204423. The reversal of 3131242204400 is 44022421313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131242204400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3914052356 + ... + 3914053155.

Almost surely, 2^{3131242204400} is an apocalyptic number.

It is an amenable number.

3131242204400 is an abundant number, since it is smaller than the sum of its proper divisors (4391567192632).

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

3131242204400 is a wasteful number, since it uses less digits than its factorization.

3131242204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828105529 (or 7828105518 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 3131242204400 its reverse (44022421313), we get a palindrome (3175264625713).

The spelling of 3131242204400 in words is "three trillion, one hundred thirty-one billion, two hundred forty-two million, two hundred four thousand, four hundred".