111123000311 has 2 divisors, whose sum is σ = 111123000312. Its totient is φ = 111123000310.

The previous prime is 111123000301. The next prime is 111123000337. The reversal of 111123000311 is 113000321111.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (113000321111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111123000311 - 2¹⁰ = 111122999287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111123000301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561500155 + 55561500156.

It is an arithmetic number, because the mean of its divisors is an integer number (55561500156).

Almost surely, 2^111123000311 is an apocalyptic number.

111123000311 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123000311 is an equidigital number, since it uses as much as digits as its factorization.

111123000311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 111123000311 its reverse (113000321111), we get a palindrome (224123321422).

The spelling of 111123000311 in words is "one hundred eleven billion, one hundred twenty-three million, three hundred eleven", and thus it is an aban number.