111130442423 has 32 divisors (see below), whose sum is σ = 149681226240. Its totient is φ = 79681599360.

The previous prime is 111130442377. The next prime is 111130442431. The reversal of 111130442423 is 324244031111.

It is not a de Polignac number, because 111130442423 - 2¹⁶ = 111130376887 is a prime.

It is a super-2 number, since 2×111130442423² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111130442392 and 111130442401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111130442023) 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, 142208 + ... + 492426.

It is an arithmetic number, because the mean of its divisors is an integer number (4677538320).

Almost surely, 2^111130442423 is an apocalyptic number.

111130442423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111130442423 is a deficient number, since it is larger than the sum of its proper divisors (38550783817).

111130442423 is a wasteful number, since it uses less digits than its factorization.

111130442423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350567.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 111130442423 its reverse (324244031111), we get a palindrome (435374473534).

The spelling of 111130442423 in words is "one hundred eleven billion, one hundred thirty million, four hundred forty-two thousand, four hundred twenty-three".