2311999969 has 2 divisors, whose sum is σ = 2311999970. Its totient is φ = 2311999968.

The previous prime is 2311999967. The next prime is 2312000023. The reversal of 2311999969 is 9699991132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2156673600 + 155326369 = 46440^2 + 12463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311999969 - 2¹ = 2311999967 is a prime.

It is a super-2 number, since 2×2311999969² = 10690687713312001922, which contains 22 as substring.

Together with 2311999967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2311999961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155999984 + 1155999985.

It is an arithmetic number, because the mean of its divisors is an integer number (1155999985).

Almost surely, 2^2311999969 is an apocalyptic number.

It is an amenable number.

2311999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311999969 is an equidigital number, since it uses as much as digits as its factorization.

2311999969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2125764, while the sum is 58.

The square root of 2311999969 is about 48083.2607983277. The cubic root of 2311999969 is about 1322.2977977817.

The spelling of 2311999969 in words is "two billion, three hundred eleven million, nine hundred ninety-nine thousand, nine hundred sixty-nine".