111244022431 has 16 divisors (see below), whose sum is σ = 117498383200. Its totient is φ = 105030027648.

The previous prime is 111244022429. The next prime is 111244022573. The reversal of 111244022431 is 134220442111.

It is not a de Polignac number, because 111244022431 - 2¹ = 111244022429 is a prime.

It is a super-2 number, since 2×111244022431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111244022396 and 111244022405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111244026431) 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, 11313025 + ... + 11322853.

It is an arithmetic number, because the mean of its divisors is an integer number (7343648950).

Almost surely, 2^111244022431 is an apocalyptic number.

111244022431 is a deficient number, since it is larger than the sum of its proper divisors (6254360769).

111244022431 is a wasteful number, since it uses less digits than its factorization.

111244022431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11818.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111244022431 its reverse (134220442111), we get a palindrome (245464464542).

The spelling of 111244022431 in words is "one hundred eleven billion, two hundred forty-four million, twenty-two thousand, four hundred thirty-one".