111101000123 has 2 divisors, whose sum is σ = 111101000124. Its totient is φ = 111101000122.

The previous prime is 111101000077. The next prime is 111101000137. The reversal of 111101000123 is 321000101111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111101000123 - 2³⁴ = 93921130939 is a prime.

It is not a weakly prime, because it can be changed into another prime (111101030123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550500061 + 55550500062.

It is an arithmetic number, because the mean of its divisors is an integer number (55550500062).

Almost surely, 2^111101000123 is an apocalyptic number.

111101000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101000123 is an equidigital number, since it uses as much as digits as its factorization.

111101000123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 111101000123 its reverse (321000101111), we get a palindrome (432101101234).

The spelling of 111101000123 in words is "one hundred eleven billion, one hundred one million, one hundred twenty-three", and thus it is an aban number.