11266243513 has 10 divisors (see below), whose sum is σ = 13143171514. Its totient is φ = 9656778096.

The previous prime is 11266243489. The next prime is 11266243517. The reversal of 11266243513 is 31534266211.

It can be written as a sum of positive squares in only one way, i.e., 7883308944 + 3382934569 = 88788^2 + 58163^2 .

It is not a de Polignac number, because 11266243513 - 2⁵ = 11266243481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11266243517) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2343756 + ... + 2348557.

Almost surely, 2^11266243513 is an apocalyptic number.

It is an amenable number.

11266243513 is a deficient number, since it is larger than the sum of its proper divisors (1876928001).

11266243513 is an frugal number, since it uses more digits than its factorization.

11266243513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692341 (or 4692320 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The spelling of 11266243513 in words is "eleven billion, two hundred sixty-six million, two hundred forty-three thousand, five hundred thirteen".