7111123 has 2 divisors, whose sum is σ = 7111124. Its totient is φ = 7111122.

The previous prime is 7111103. The next prime is 7111127. The reversal of 7111123 is 3211117.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7111123 is a prime.

It is a super-2 number, since 2×7111123² = 101136140642258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7111097 and 7111106.

It is not a weakly prime, because it can be changed into another prime (7111127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3555561 + 3555562.

It is an arithmetic number, because the mean of its divisors is an integer number (3555562).

Almost surely, 2^7111123 is an apocalyptic number.

7111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

7111123 is an equidigital number, since it uses as much as digits as its factorization.

7111123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42, while the sum is 16.

The square root of 7111123 is about 2666.6688958324. The cubic root of 7111123 is about 192.3000498748.

The spelling of 7111123 in words is "seven million, one hundred eleven thousand, one hundred twenty-three".