109911001001 has 2 divisors, whose sum is σ = 109911001002. Its totient is φ = 109911001000.

The previous prime is 109911000959. The next prime is 109911001027. The reversal of 109911001001 is 100100119901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108043032601 + 1867968400 = 328699^2 + 43220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109911001001 is a prime.

It is not a weakly prime, because it can be changed into another prime (109911001061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54955500500 + 54955500501.

It is an arithmetic number, because the mean of its divisors is an integer number (54955500501).

Almost surely, 2^109911001001 is an apocalyptic number.

It is an amenable number.

109911001001 is a deficient number, since it is larger than the sum of its proper divisors (1).

109911001001 is an equidigital number, since it uses as much as digits as its factorization.

109911001001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 109911001001 in words is "one hundred nine billion, nine hundred eleven million, one thousand, one".