2002323091 has 2 divisors, whose sum is σ = 2002323092. Its totient is φ = 2002323090.

The previous prime is 2002323047. The next prime is 2002323137. The reversal of 2002323091 is 1903232002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002323091 - 2⁷ = 2002322963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002320091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001161545 + 1001161546.

It is an arithmetic number, because the mean of its divisors is an integer number (1001161546).

Almost surely, 2^2002323091 is an apocalyptic number.

2002323091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002323091 is an equidigital number, since it uses as much as digits as its factorization.

2002323091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2002323091 is about 44747.3249591526. The cubic root of 2002323091 is about 1260.4086796841.

Adding to 2002323091 its reverse (1903232002), we get a palindrome (3905555093).

The spelling of 2002323091 in words is "two billion, two million, three hundred twenty-three thousand, ninety-one".