31342514113521 has 12 divisors (see below), whose sum is σ = 48755021954548. Its totient is φ = 19287700992864.

The previous prime is 31342514113483. The next prime is 31342514113531. The reversal of 31342514113521 is 12531141524313.

31342514113521 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 2 + 5 + 14 + 113 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7456372964496 + 23886141149025 = 2730636^2 + 4887345^2 .

It is not a de Polignac number, because 31342514113521 - 2¹⁴ = 31342514097137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31342514113531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133942367890 + ... + 133942368123.

Almost surely, 2^{31342514113521} is an apocalyptic number.

It is an amenable number.

31342514113521 is a deficient number, since it is larger than the sum of its proper divisors (17412507841027).

31342514113521 is a wasteful number, since it uses less digits than its factorization.

31342514113521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267884736032 (or 267884736029 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 31342514113521 its reverse (12531141524313), we get a palindrome (43873655637834).

The spelling of 31342514113521 in words is "thirty-one trillion, three hundred forty-two billion, five hundred fourteen million, one hundred thirteen thousand, five hundred twenty-one".