2123245123 has 2 divisors, whose sum is σ = 2123245124. Its totient is φ = 2123245122.

The previous prime is 2123245097. The next prime is 2123245127. The reversal of 2123245123 is 3215423212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123245123 - 2²¹ = 2121147971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123245127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061622561 + 1061622562.

It is an arithmetic number, because the mean of its divisors is an integer number (1061622562).

Almost surely, 2^2123245123 is an apocalyptic number.

2123245123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123245123 is an equidigital number, since it uses as much as digits as its factorization.

2123245123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 2123245123 is about 46078.6840415392. The cubic root of 2123245123 is about 1285.2867933203.

Adding to 2123245123 its reverse (3215423212), we get a palindrome (5338668335).

The spelling of 2123245123 in words is "two billion, one hundred twenty-three million, two hundred forty-five thousand, one hundred twenty-three".