11323297257 has 16 divisors (see below), whose sum is σ = 15548082432. Its totient is φ = 7324801920.

The previous prime is 11323297241. The next prime is 11323297259. The reversal of 11323297257 is 75279232311.

It is a happy number.

It is not a de Polignac number, because 11323297257 - 2⁴ = 11323297241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11323297259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98244 + ... + 179717.

It is an arithmetic number, because the mean of its divisors is an integer number (971755152).

Almost surely, 2^11323297257 is an apocalyptic number.

It is an amenable number.

11323297257 is a deficient number, since it is larger than the sum of its proper divisors (4224785175).

11323297257 is a wasteful number, since it uses less digits than its factorization.

11323297257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278368.

The product of its digits is 158760, while the sum is 42.

The spelling of 11323297257 in words is "eleven billion, three hundred twenty-three million, two hundred ninety-seven thousand, two hundred fifty-seven".