11440402091 has 2 divisors, whose sum is σ = 11440402092. Its totient is φ = 11440402090.

The previous prime is 11440401997. The next prime is 11440402111. The reversal of 11440402091 is 19020404411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11440402091 - 2¹⁰ = 11440401067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11440402091.

It is not a weakly prime, because it can be changed into another prime (11440402891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5720201045 + 5720201046.

It is an arithmetic number, because the mean of its divisors is an integer number (5720201046).

Almost surely, 2^11440402091 is an apocalyptic number.

11440402091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11440402091 is an equidigital number, since it uses as much as digits as its factorization.

11440402091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 11440402091 in words is "eleven billion, four hundred forty million, four hundred two thousand, ninety-one".