11231320322569 has 2 divisors, whose sum is σ = 11231320322570. Its totient is φ = 11231320322568.

The previous prime is 11231320322549. The next prime is 11231320322591. The reversal of 11231320322569 is 96522302313211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6979529934400 + 4251790388169 = 2641880^2 + 2061987^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231320322569 - 2³¹ = 11229172838921 is a prime.

It is a super-2 number, since 2×11231320322569² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11231320322549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615660161284 + 5615660161285.

It is an arithmetic number, because the mean of its divisors is an integer number (5615660161285).

Almost surely, 2^{11231320322569} is an apocalyptic number.

It is an amenable number.

11231320322569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231320322569 is an equidigital number, since it uses as much as digits as its factorization.

11231320322569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 11231320322569 in words is "eleven trillion, two hundred thirty-one billion, three hundred twenty million, three hundred twenty-two thousand, five hundred sixty-nine".