111311230103 has 2 divisors, whose sum is σ = 111311230104. Its totient is φ = 111311230102.

The previous prime is 111311230099. The next prime is 111311230141. The reversal of 111311230103 is 301032113111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111311230103 - 2² = 111311230099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111311230193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655615051 + 55655615052.

It is an arithmetic number, because the mean of its divisors is an integer number (55655615052).

Almost surely, 2^111311230103 is an apocalyptic number.

111311230103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311230103 is an equidigital number, since it uses as much as digits as its factorization.

111311230103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 111311230103 its reverse (301032113111), we get a palindrome (412343343214).

The spelling of 111311230103 in words is "one hundred eleven billion, three hundred eleven million, two hundred thirty thousand, one hundred three".