331312112122969 has 2 divisors, whose sum is σ = 331312112122970. Its totient is φ = 331312112122968.

The previous prime is 331312112122949. The next prime is 331312112123093. The reversal of 331312112122969 is 969221211213133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300471716174400 + 30840395948569 = 17334120^2 + 5553413^2 .

It is a cyclic number.

It is not a de Polignac number, because 331312112122969 - 2⁴¹ = 329113088867417 is a prime.

It is a super-2 number, since 2×331312112122969² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331312112122949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165656056061484 + 165656056061485.

It is an arithmetic number, because the mean of its divisors is an integer number (165656056061485).

Almost surely, 2^{331312112122969} is an apocalyptic number.

It is an amenable number.

331312112122969 is a deficient number, since it is larger than the sum of its proper divisors (1).

331312112122969 is an equidigital number, since it uses as much as digits as its factorization.

331312112122969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The spelling of 331312112122969 in words is "three hundred thirty-one trillion, three hundred twelve billion, one hundred twelve million, one hundred twenty-two thousand, nine hundred sixty-nine".