31102134013 has 2 divisors, whose sum is σ = 31102134014. Its totient is φ = 31102134012.

The previous prime is 31102133927. The next prime is 31102134017. The reversal of 31102134013 is 31043120113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29226637764 + 1875496249 = 170958^2 + 43307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31102134013 is a prime.

It is a super-2 number, since 2×31102134013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31102134017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551067006 + 15551067007.

It is an arithmetic number, because the mean of its divisors is an integer number (15551067007).

Almost surely, 2^31102134013 is an apocalyptic number.

It is an amenable number.

31102134013 is a deficient number, since it is larger than the sum of its proper divisors (1).

31102134013 is an equidigital number, since it uses as much as digits as its factorization.

31102134013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31102134013 its reverse (31043120113), we get a palindrome (62145254126).

The spelling of 31102134013 in words is "thirty-one billion, one hundred two million, one hundred thirty-four thousand, thirteen".