2118023 has 2 divisors, whose sum is σ = 2118024. Its totient is φ = 2118022.

The previous prime is 2118007. The next prime is 2118029. The reversal of 2118023 is 3208112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2118023 - 2⁴ = 2118007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2117992 and 2118010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059011 + 1059012.

It is an arithmetic number, because the mean of its divisors is an integer number (1059012).

2^2118023 is an apocalyptic number.

2118023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118023 is an equidigital number, since it uses as much as digits as its factorization.

2118023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2118023 is about 1455.3429149173. The cubic root of 2118023 is about 128.4232206979.

The spelling of 2118023 in words is "two million, one hundred eighteen thousand, twenty-three".