11112323222231 has 8 divisors (see below), whose sum is σ = 13854325056384. Its totient is φ = 8658953160120.

The previous prime is 11112323222171. The next prime is 11112323222263. The reversal of 11112323222231 is 13222232321111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112323222231 is a prime.

It is a super-2 number, since 2×11112323222231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112323222231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112323222431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72157942925 + ... + 72157943078.

It is an arithmetic number, because the mean of its divisors is an integer number (1731790632048).

Almost surely, 2^{11112323222231} is an apocalyptic number.

11112323222231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11112323222231 is a deficient number, since it is larger than the sum of its proper divisors (2742001834153).

11112323222231 is a wasteful number, since it uses less digits than its factorization.

11112323222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144315886021.

The product of its digits is 1728, while the sum is 26.

Adding to 11112323222231 its reverse (13222232321111), we get a palindrome (24334555543342).

The spelling of 11112323222231 in words is "eleven trillion, one hundred twelve billion, three hundred twenty-three million, two hundred twenty-two thousand, two hundred thirty-one".