2102323123 has 2 divisors, whose sum is σ = 2102323124. Its totient is φ = 2102323122.

The previous prime is 2102323103. The next prime is 2102323141. The reversal of 2102323123 is 3213232012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102323123 - 2⁹ = 2102322611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102323123.

It is not a weakly prime, because it can be changed into another prime (2102323103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051161561 + 1051161562.

It is an arithmetic number, because the mean of its divisors is an integer number (1051161562).

Almost surely, 2^2102323123 is an apocalyptic number.

2102323123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102323123 is an equidigital number, since it uses as much as digits as its factorization.

2102323123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2102323123 is about 45851.0972933037. The cubic root of 2102323123 is about 1281.0512041265.

Adding to 2102323123 its reverse (3213232012), we get a palindrome (5315555135).

The spelling of 2102323123 in words is "two billion, one hundred two million, three hundred twenty-three thousand, one hundred twenty-three".