31133301317 has 2 divisors, whose sum is σ = 31133301318. Its totient is φ = 31133301316.

The previous prime is 31133301263. The next prime is 31133301323. The reversal of 31133301317 is 71310333113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29128590241 + 2004711076 = 170671^2 + 44774^2 .

It is a cyclic number.

It is not a de Polignac number, because 31133301317 - 2¹⁰ = 31133300293 is a prime.

It is a super-2 number, since 2×31133301317² (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 (31133301347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566650658 + 15566650659.

It is an arithmetic number, because the mean of its divisors is an integer number (15566650659).

Almost surely, 2^31133301317 is an apocalyptic number.

It is an amenable number.

31133301317 is a deficient number, since it is larger than the sum of its proper divisors (1).

31133301317 is an equidigital number, since it uses as much as digits as its factorization.

31133301317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 26.

The spelling of 31133301317 in words is "thirty-one billion, one hundred thirty-three million, three hundred one thousand, three hundred seventeen".