43122431969 has 2 divisors, whose sum is σ = 43122431970. Its totient is φ = 43122431968.

The previous prime is 43122431941. The next prime is 43122432071. The reversal of 43122431969 is 96913422134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38486592400 + 4635839569 = 196180^2 + 68087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43122431969 is a prime.

It is a super-2 number, since 2×43122431969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43122431069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21561215984 + 21561215985.

It is an arithmetic number, because the mean of its divisors is an integer number (21561215985).

Almost surely, 2^43122431969 is an apocalyptic number.

It is an amenable number.

43122431969 is a deficient number, since it is larger than the sum of its proper divisors (1).

43122431969 is an equidigital number, since it uses as much as digits as its factorization.

43122431969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The spelling of 43122431969 in words is "forty-three billion, one hundred twenty-two million, four hundred thirty-one thousand, nine hundred sixty-nine".