1112111123 has 2 divisors, whose sum is σ = 1112111124. Its totient is φ = 1112111122.

The previous prime is 1112111087. The next prime is 1112111141. The reversal of 1112111123 is 3211112111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112111123 is a prime.

It is a super-2 number, since 2×1112111123² = 2473582299800642258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112111098 and 1112111107.

It is not a weakly prime, because it can be changed into another prime (1112111023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556055561 + 556055562.

It is an arithmetic number, because the mean of its divisors is an integer number (556055562).

Almost surely, 2^1112111123 is an apocalyptic number.

1112111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112111123 is an equidigital number, since it uses as much as digits as its factorization.

1112111123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12, while the sum is 14.

The square root of 1112111123 is about 33348.3301381044. The cubic root of 1112111123 is about 1036.0548024234.

Adding to 1112111123 its reverse (3211112111), we get a palindrome (4323223234).

The spelling of 1112111123 in words is "one billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-three".