111104221431 has 8 divisors (see below), whose sum is σ = 169301670784. Its totient is φ = 63488126520.

The previous prime is 111104221379. The next prime is 111104221439. The reversal of 111104221431 is 134122401111.

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

It is not a de Polignac number, because 111104221431 - 2¹⁹ = 111103697143 is a prime.

It is a super-2 number, since 2×111104221431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5290677211 = 111104221431 / (1 + 1 + 1 + 1 + 0 + 4 + 2 + 2 + 1 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111104221398 and 111104221407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111104221439) 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, 2645338585 + ... + 2645338626.

It is an arithmetic number, because the mean of its divisors is an integer number (21162708848).

Almost surely, 2^111104221431 is an apocalyptic number.

111104221431 is a deficient number, since it is larger than the sum of its proper divisors (58197449353).

111104221431 is an equidigital number, since it uses as much as digits as its factorization.

111104221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5290677221.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 111104221431 its reverse (134122401111), we get a palindrome (245226622542).

The spelling of 111104221431 in words is "one hundred eleven billion, one hundred four million, two hundred twenty-one thousand, four hundred thirty-one".