11311022999 has 2 divisors, whose sum is σ = 11311023000. Its totient is φ = 11311022998.

The previous prime is 11311022929. The next prime is 11311023011. The reversal of 11311022999 is 99922011311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11311022999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11311022929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655511499 + 5655511500.

It is an arithmetic number, because the mean of its divisors is an integer number (5655511500).

Almost surely, 2^11311022999 is an apocalyptic number.

11311022999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311022999 is an equidigital number, since it uses as much as digits as its factorization.

11311022999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 11311022999 in words is "eleven billion, three hundred eleven million, twenty-two thousand, nine hundred ninety-nine".