11112303231 has 12 divisors (see below), whose sum is σ = 16067546352. Its totient is φ = 7400613696.

The previous prime is 11112303227. The next prime is 11112303289. The reversal of 11112303231 is 13230321111.

11112303231 is a `hidden beast` number, since 1 + 111 + 230 + 323 + 1 = 666.

It is not a de Polignac number, because 11112303231 - 2² = 11112303227 is a prime.

It is a super-2 number, since 2×11112303231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112303331) 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, 623091 + ... + 640676.

It is an arithmetic number, because the mean of its divisors is an integer number (1338962196).

Almost surely, 2^11112303231 is an apocalyptic number.

11112303231 is a deficient number, since it is larger than the sum of its proper divisors (4955243121).

11112303231 is a wasteful number, since it uses less digits than its factorization.

11112303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264750 (or 1264747 counting only the distinct ones).

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

Adding to 11112303231 its reverse (13230321111), we get a palindrome (24342624342).

The spelling of 11112303231 in words is "eleven billion, one hundred twelve million, three hundred three thousand, two hundred thirty-one".