111112013123 has 2 divisors, whose sum is σ = 111112013124. Its totient is φ = 111112013122.

The previous prime is 111112013011. The next prime is 111112013147. The reversal of 111112013123 is 321310211111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111112013123 - 2²² = 111107818819 is a prime.

It is not a weakly prime, because it can be changed into another prime (111112015123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556006561 + 55556006562.

It is an arithmetic number, because the mean of its divisors is an integer number (55556006562).

Almost surely, 2^111112013123 is an apocalyptic number.

111112013123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112013123 is an equidigital number, since it uses as much as digits as its factorization.

111112013123 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 17.

Adding to 111112013123 its reverse (321310211111), we get a palindrome (432422224234).

The spelling of 111112013123 in words is "one hundred eleven billion, one hundred twelve million, thirteen thousand, one hundred twenty-three".