111120103123 has 2 divisors, whose sum is σ = 111120103124. Its totient is φ = 111120103122.

The previous prime is 111120103069. The next prime is 111120103163. The reversal of 111120103123 is 321301021111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111120103123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111120103097 and 111120103106.

It is not a weakly prime, because it can be changed into another prime (111120103163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560051561 + 55560051562.

It is an arithmetic number, because the mean of its divisors is an integer number (55560051562).

Almost surely, 2^111120103123 is an apocalyptic number.

111120103123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120103123 is an equidigital number, since it uses as much as digits as its factorization.

111120103123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111120103123 its reverse (321301021111), we get a palindrome (432421124234).

The spelling of 111120103123 in words is "one hundred eleven billion, one hundred twenty million, one hundred three thousand, one hundred twenty-three".