11312123223 has 32 divisors (see below), whose sum is σ = 15511953600. Its totient is φ = 7330176000.

The previous prime is 11312123191. The next prime is 11312123239. The reversal of 11312123223 is 32232121311.

It is not a de Polignac number, because 11312123223 - 2⁵ = 11312123191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11312123223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312113223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13982443 + ... + 13983251.

It is an arithmetic number, because the mean of its divisors is an integer number (484748550).

Almost surely, 2^11312123223 is an apocalyptic number.

11312123223 is a deficient number, since it is larger than the sum of its proper divisors (4199830377).

11312123223 is a wasteful number, since it uses less digits than its factorization.

11312123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its digits is 432, while the sum is 21.

Adding to 11312123223 its reverse (32232121311), we get a palindrome (43544244534).

The spelling of 11312123223 in words is "eleven billion, three hundred twelve million, one hundred twenty-three thousand, two hundred twenty-three".