2006123699 has 2 divisors, whose sum is σ = 2006123700. Its totient is φ = 2006123698.

The previous prime is 2006123663. The next prime is 2006123737. The reversal of 2006123699 is 9963216002.

It is an a-pointer prime, because the next prime (2006123737) can be obtained adding 2006123699 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2006123699 - 2⁸ = 2006123443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2006123099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003061849 + 1003061850.

It is an arithmetic number, because the mean of its divisors is an integer number (1003061850).

Almost surely, 2^2006123699 is an apocalyptic number.

2006123699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006123699 is an equidigital number, since it uses as much as digits as its factorization.

2006123699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 2006123699 is about 44789.7722588539. The cubic root of 2006123699 is about 1261.2056359281.

The spelling of 2006123699 in words is "two billion, six million, one hundred twenty-three thousand, six hundred ninety-nine".