111440122431 has 16 divisors (see below), whose sum is σ = 162304456320. Its totient is φ = 67452079520.

The previous prime is 111440122421. The next prime is 111440122459. The reversal of 111440122431 is 134221044111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111440122431 - 2¹⁷ = 111439991359 is a prime.

It is a super-2 number, since 2×111440122431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111440122411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2158821 + ... + 2209838.

It is an arithmetic number, because the mean of its divisors is an integer number (10144028520).

Almost surely, 2^111440122431 is an apocalyptic number.

111440122431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111440122431 is a deficient number, since it is larger than the sum of its proper divisors (50864333889).

111440122431 is a wasteful number, since it uses less digits than its factorization.

111440122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369446.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 111440122431 its reverse (134221044111), we get a palindrome (245661166542).

The spelling of 111440122431 in words is "one hundred eleven billion, four hundred forty million, one hundred twenty-two thousand, four hundred thirty-one".