331423183172969 has 2 divisors, whose sum is σ = 331423183172970. Its totient is φ = 331423183172968.

The previous prime is 331423183172953. The next prime is 331423183173029. The reversal of 331423183172969 is 969271381324133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168932406760000 + 162490776412969 = 12997400^2 + 12747187^2 .

It is an emirp because it is prime and its reverse (969271381324133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331423183172969 - 2⁴ = 331423183172953 is a prime.

It is a super-2 number, since 2×331423183172969² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331423183172569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165711591586484 + 165711591586485.

It is an arithmetic number, because the mean of its divisors is an integer number (165711591586485).

Almost surely, 2^{331423183172969} is an apocalyptic number.

It is an amenable number.

331423183172969 is a deficient number, since it is larger than the sum of its proper divisors (1).

331423183172969 is an equidigital number, since it uses as much as digits as its factorization.

331423183172969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 62.

The spelling of 331423183172969 in words is "three hundred thirty-one trillion, four hundred twenty-three billion, one hundred eighty-three million, one hundred seventy-two thousand, nine hundred sixty-nine".