3031131243400 has 96 divisors (see below), whose sum is σ = 7693452353160. Its totient is φ = 1103855523840.

The previous prime is 3031131243391. The next prime is 3031131243421. The reversal of 3031131243400 is 43421311303.

It can be written as a sum of positive squares in 12 ways, for example, as 129198551364 + 2901932692036 = 359442^2 + 1703506^2 .

It is a super-2 number, since 2×3031131243400² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7795267 + ... + 8174866.

Almost surely, 2^{3031131243400} is an apocalyptic number.

It is an amenable number.

3031131243400 is an abundant number, since it is smaller than the sum of its proper divisors (4662321109760).

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

3031131243400 is a wasteful number, since it uses less digits than its factorization.

3031131243400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15970235 (or 15970226 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3031131243400 its reverse (43421311303), we get a palindrome (3074552554703).

The spelling of 3031131243400 in words is "three trillion, thirty-one billion, one hundred thirty-one million, two hundred forty-three thousand, four hundred".