11510257091 has 2 divisors, whose sum is σ = 11510257092. Its totient is φ = 11510257090.

The previous prime is 11510257081. The next prime is 11510257117. The reversal of 11510257091 is 19075201511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11510257091 - 2³⁰ = 10436515267 is a prime.

It is not a weakly prime, because it can be changed into another prime (11510257001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5755128545 + 5755128546.

It is an arithmetic number, because the mean of its divisors is an integer number (5755128546).

Almost surely, 2^11510257091 is an apocalyptic number.

11510257091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11510257091 is an equidigital number, since it uses as much as digits as its factorization.

11510257091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 32.

The spelling of 11510257091 in words is "eleven billion, five hundred ten million, two hundred fifty-seven thousand, ninety-one".