2003123099 has 2 divisors, whose sum is σ = 2003123100. Its totient is φ = 2003123098.

The previous prime is 2003123093. The next prime is 2003123123. The reversal of 2003123099 is 9903213002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003123099 - 2¹² = 2003119003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2003123093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001561549 + 1001561550.

It is an arithmetic number, because the mean of its divisors is an integer number (1001561550).

Almost surely, 2^2003123099 is an apocalyptic number.

2003123099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003123099 is an equidigital number, since it uses as much as digits as its factorization.

2003123099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 2003123099 is about 44756.2632376743. The cubic root of 2003123099 is about 1260.5765185261.

The spelling of 2003123099 in words is "two billion, three million, one hundred twenty-three thousand, ninety-nine".