111103431223 has 2 divisors, whose sum is σ = 111103431224. Its totient is φ = 111103431222.

The previous prime is 111103431221. The next prime is 111103431233. The reversal of 111103431223 is 322134301111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111103431223 - 2¹ = 111103431221 is a prime.

Together with 111103431221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 111103431194 and 111103431203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111103431221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551715611 + 55551715612.

It is an arithmetic number, because the mean of its divisors is an integer number (55551715612).

Almost surely, 2^111103431223 is an apocalyptic number.

111103431223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111103431223 is an equidigital number, since it uses as much as digits as its factorization.

111103431223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 111103431223 its reverse (322134301111), we get a palindrome (433237732334).

The spelling of 111103431223 in words is "one hundred eleven billion, one hundred three million, four hundred thirty-one thousand, two hundred twenty-three".