2101423 has 2 divisors, whose sum is σ = 2101424. Its totient is φ = 2101422.

The previous prime is 2101391. The next prime is 2101433. The reversal of 2101423 is 3241012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101423 - 2⁵ = 2101391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050711 + 1050712.

It is an arithmetic number, because the mean of its divisors is an integer number (1050712).

2^2101423 is an apocalyptic number.

2101423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101423 is an equidigital number, since it uses as much as digits as its factorization.

2101423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2101423 is about 1449.6285731180. The cubic root of 2101423 is about 128.0868347957.

Adding to 2101423 its reverse (3241012), we get a palindrome (5342435).

The spelling of 2101423 in words is "two million, one hundred one thousand, four hundred twenty-three".