3131522121104 has 20 divisors (see below), whose sum is σ = 6534041349276. Its totient is φ = 1445317901952.

The previous prime is 3131522121083. The next prime is 3131522121107. The reversal of 3131522121104 is 4011212251313.

3131522121104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1017580597504 + 2113941523600 = 1008752^2 + 1453940^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (3131522121107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7527697199 + ... + 7527697614.

Almost surely, 2^{3131522121104} is an apocalyptic number.

It is an amenable number.

3131522121104 is an abundant number, since it is smaller than the sum of its proper divisors (3402519228172).

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

3131522121104 is a wasteful number, since it uses less digits than its factorization.

3131522121104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15055394834 (or 15055394828 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 3131522121104 its reverse (4011212251313), we get a palindrome (7142734372417).

The spelling of 3131522121104 in words is "three trillion, one hundred thirty-one billion, five hundred twenty-two million, one hundred twenty-one thousand, one hundred four".