111142024231 has 8 divisors (see below), whose sum is σ = 127379287584. Its totient is φ = 94994718720.

The previous prime is 111142024219. The next prime is 111142024289. The reversal of 111142024231 is 132420241111.

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

It is a cyclic number.

It is not a de Polignac number, because 111142024231 - 2⁹ = 111142023719 is a prime.

It is a super-2 number, since 2×111142024231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111142021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22486810 + ... + 22491751.

It is an arithmetic number, because the mean of its divisors is an integer number (15922410948).

Almost surely, 2^111142024231 is an apocalyptic number.

111142024231 is a deficient number, since it is larger than the sum of its proper divisors (16237263353).

111142024231 is an equidigital number, since it uses as much as digits as its factorization.

111142024231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44978921.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111142024231 its reverse (132420241111), we get a palindrome (243562265342).

The spelling of 111142024231 in words is "one hundred eleven billion, one hundred forty-two million, twenty-four thousand, two hundred thirty-one".