11233299991 has 2 divisors, whose sum is σ = 11233299992. Its totient is φ = 11233299990.

The previous prime is 11233299983. The next prime is 11233300019. The reversal of 11233299991 is 19999233211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11233299991 - 2³ = 11233299983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11233299941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616649995 + 5616649996.

It is an arithmetic number, because the mean of its divisors is an integer number (5616649996).

Almost surely, 2^11233299991 is an apocalyptic number.

11233299991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11233299991 is an equidigital number, since it uses as much as digits as its factorization.

11233299991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236196, while the sum is 49.

The spelling of 11233299991 in words is "eleven billion, two hundred thirty-three million, two hundred ninety-nine thousand, nine hundred ninety-one".