11105905901 has 2 divisors, whose sum is σ = 11105905902. Its totient is φ = 11105905900.

The previous prime is 11105905831. The next prime is 11105905913. The reversal of 11105905901 is 10950950111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9677443876 + 1428462025 = 98374^2 + 37795^2 .

It is a cyclic number.

It is not a de Polignac number, because 11105905901 - 2²² = 11101711597 is a prime.

It is a super-2 number, since 2×11105905901² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11105905931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552952950 + 5552952951.

It is an arithmetic number, because the mean of its divisors is an integer number (5552952951).

Almost surely, 2^11105905901 is an apocalyptic number.

It is an amenable number.

11105905901 is a deficient number, since it is larger than the sum of its proper divisors (1).

11105905901 is an equidigital number, since it uses as much as digits as its factorization.

11105905901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 32.

The spelling of 11105905901 in words is "eleven billion, one hundred five million, nine hundred five thousand, nine hundred one".