11512090279 has 2 divisors, whose sum is σ = 11512090280. Its totient is φ = 11512090278.

The previous prime is 11512090267. The next prime is 11512090297. The reversal of 11512090279 is 97209021511.

Together with next prime (11512090297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11512090279 - 2¹⁵ = 11512057511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11512090259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756045139 + 5756045140.

It is an arithmetic number, because the mean of its divisors is an integer number (5756045140).

Almost surely, 2^11512090279 is an apocalyptic number.

11512090279 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512090279 is an equidigital number, since it uses as much as digits as its factorization.

11512090279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 11512090279 in words is "eleven billion, five hundred twelve million, ninety thousand, two hundred seventy-nine".