3131323103100 has 72 divisors (see below), whose sum is σ = 9061852778608. Its totient is φ = 834845184000.

The previous prime is 3131323102991. The next prime is 3131323103189. The reversal of 3131323103100 is 13013231313.

It is a super-2 number, since 2×3131323103100² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 353262 + ... + 2527338.

Almost surely, 2^{3131323103100} is an apocalyptic number.

3131323103100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3131323103100 is an abundant number, since it is smaller than the sum of its proper divisors (5930529675508).

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

3131323103100 is a wasteful number, since it uses less digits than its factorization.

3131323103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178895 (or 2178888 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 3131323103100 its reverse (13013231313), we get a palindrome (3144336334413).

The spelling of 3131323103100 in words is "three trillion, one hundred thirty-one billion, three hundred twenty-three million, one hundred three thousand, one hundred".