1331322112969 has 2 divisors, whose sum is σ = 1331322112970. Its totient is φ = 1331322112968.

The previous prime is 1331322112957. The next prime is 1331322113057. The reversal of 1331322112969 is 9692112231331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1263573831744 + 67748281225 = 1124088^2 + 260285^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331322112969 - 2⁹ = 1331322112457 is a prime.

It is a super-2 number, since 2×1331322112969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1331322112069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665661056484 + 665661056485.

It is an arithmetic number, because the mean of its divisors is an integer number (665661056485).

Almost surely, 2^{1331322112969} is an apocalyptic number.

It is an amenable number.

1331322112969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331322112969 is an equidigital number, since it uses as much as digits as its factorization.

1331322112969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The spelling of 1331322112969 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-two million, one hundred twelve thousand, nine hundred sixty-nine".