31311320301269 has 2 divisors, whose sum is σ = 31311320301270. Its totient is φ = 31311320301268.

The previous prime is 31311320301259. The next prime is 31311320301311. The reversal of 31311320301269 is 96210302311313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31212758838244 + 98561463025 = 5586838^2 + 313945^2 .

It is a cyclic number.

It is not a de Polignac number, because 31311320301269 - 2²⁰ = 31311319252693 is a prime.

It is a super-2 number, since 2×31311320301269² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31311320301259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655660150634 + 15655660150635.

It is an arithmetic number, because the mean of its divisors is an integer number (15655660150635).

Almost surely, 2^{31311320301269} is an apocalyptic number.

It is an amenable number.

31311320301269 is a deficient number, since it is larger than the sum of its proper divisors (1).

31311320301269 is an equidigital number, since it uses as much as digits as its factorization.

31311320301269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 31311320301269 in words is "thirty-one trillion, three hundred eleven billion, three hundred twenty million, three hundred one thousand, two hundred sixty-nine".