111100243431 has 8 divisors (see below), whose sum is σ = 150220047744. Its totient is φ = 73023634040.

The previous prime is 111100243421. The next prime is 111100243489. The reversal of 111100243431 is 134342001111.

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 111100243431 - 2⁵ = 111100243399 is a prime.

It is a super-2 number, since 2×111100243431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111100243398 and 111100243407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100243421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260798481 + ... + 260798906.

It is an arithmetic number, because the mean of its divisors is an integer number (18777505968).

Almost surely, 2^111100243431 is an apocalyptic number.

111100243431 is a deficient number, since it is larger than the sum of its proper divisors (39119804313).

111100243431 is an equidigital number, since it uses as much as digits as its factorization.

111100243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521597461.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111100243431 its reverse (134342001111), we get a palindrome (245442244542).

The spelling of 111100243431 in words is "one hundred eleven billion, one hundred million, two hundred forty-three thousand, four hundred thirty-one".