2003122399 has 2 divisors, whose sum is σ = 2003122400. Its totient is φ = 2003122398.

The previous prime is 2003122397. The next prime is 2003122483. The reversal of 2003122399 is 9932213002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003122399 - 2¹ = 2003122397 is a prime.

Together with 2003122397, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2003122399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003122397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001561199 + 1001561200.

It is an arithmetic number, because the mean of its divisors is an integer number (1001561200).

Almost surely, 2^2003122399 is an apocalyptic number.

2003122399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003122399 is an equidigital number, since it uses as much as digits as its factorization.

2003122399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 2003122399 is about 44756.2554175391. The cubic root of 2003122399 is about 1260.5763716881.

The spelling of 2003122399 in words is "two billion, three million, one hundred twenty-two thousand, three hundred ninety-nine".