2116123 has 2 divisors, whose sum is σ = 2116124. Its totient is φ = 2116122.

The previous prime is 2116117. The next prime is 2116129. The reversal of 2116123 is 3216112.

It is a balanced prime because it is at equal distance from previous prime (2116117) and next prime (2116129).

It is a cyclic number.

It is not a de Polignac number, because 2116123 - 2¹⁷ = 1985051 is a prime.

It is a super-2 number, since 2×2116123² = 8955953102258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2116097 and 2116106.

It is not a weakly prime, because it can be changed into another prime (2116129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058061 + 1058062.

It is an arithmetic number, because the mean of its divisors is an integer number (1058062).

2^2116123 is an apocalyptic number.

2116123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116123 is an equidigital number, since it uses as much as digits as its factorization.

2116123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 16.

The square root of 2116123 is about 1454.6900013405. The cubic root of 2116123 is about 128.3848079709.

The spelling of 2116123 in words is "two million, one hundred sixteen thousand, one hundred twenty-three".