2123123299 has 4 divisors (see below), whose sum is σ = 2316134520. Its totient is φ = 1930112080.

The previous prime is 2123123291. The next prime is 2123123311. The reversal of 2123123299 is 9923213212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123123299 - 2³ = 2123123291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123123291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96505594 + ... + 96505615.

It is an arithmetic number, because the mean of its divisors is an integer number (579033630).

Almost surely, 2^2123123299 is an apocalyptic number.

2123123299 is a deficient number, since it is larger than the sum of its proper divisors (193011221).

2123123299 is a wasteful number, since it uses less digits than its factorization.

2123123299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193011220.

The product of its digits is 11664, while the sum is 34.

The square root of 2123123299 is about 46077.3621098257. The cubic root of 2123123299 is about 1285.2622111730.

The spelling of 2123123299 in words is "two billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred ninety-nine".