111000013123 has 2 divisors, whose sum is σ = 111000013124. Its totient is φ = 111000013122.

The previous prime is 111000013109. The next prime is 111000013133. The reversal of 111000013123 is 321310000111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111000013123 - 2¹⁷ = 110999882051 is a prime.

It is not a weakly prime, because it can be changed into another prime (111000013133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500006561 + 55500006562.

It is an arithmetic number, because the mean of its divisors is an integer number (55500006562).

Almost surely, 2^111000013123 is an apocalyptic number.

111000013123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000013123 is an equidigital number, since it uses as much as digits as its factorization.

111000013123 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 13.

Adding to 111000013123 its reverse (321310000111), we get a palindrome (432310013234).

The spelling of 111000013123 in words is "one hundred eleven billion, thirteen thousand, one hundred twenty-three".