11323120311 has 12 divisors (see below), whose sum is σ = 16356543840. Its totient is φ = 7548319680.

The previous prime is 11323120307. The next prime is 11323120331. The reversal of 11323120311 is 11302132311.

11323120311 is a `hidden beast` number, since 11 + 32 + 312 + 0 + 311 = 666.

It is not a de Polignac number, because 11323120311 - 2² = 11323120307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323120331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273730 + ... + 312368.

It is an arithmetic number, because the mean of its divisors is an integer number (1363045320).

Almost surely, 2^11323120311 is an apocalyptic number.

11323120311 is a deficient number, since it is larger than the sum of its proper divisors (5033423529).

11323120311 is a wasteful number, since it uses less digits than its factorization.

11323120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71206 (or 71203 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11323120311 its reverse (11302132311), we get a palindrome (22625252622).

The spelling of 11323120311 in words is "eleven billion, three hundred twenty-three million, one hundred twenty thousand, three hundred eleven".