11001099947 has 2 divisors, whose sum is σ = 11001099948. Its totient is φ = 11001099946.

The previous prime is 11001099943. The next prime is 11001099953. The reversal of 11001099947 is 74999010011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11001099947 - 2² = 11001099943 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001099943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500549973 + 5500549974.

It is an arithmetic number, because the mean of its divisors is an integer number (5500549974).

Almost surely, 2^11001099947 is an apocalyptic number.

11001099947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001099947 is an equidigital number, since it uses as much as digits as its factorization.

11001099947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 41.

The spelling of 11001099947 in words is "eleven billion, one million, ninety-nine thousand, nine hundred forty-seven".