123006639983 has 2 divisors, whose sum is σ = 123006639984. Its totient is φ = 123006639982.

The previous prime is 123006639961. The next prime is 123006640021. The reversal of 123006639983 is 389936600321.

It is a weak prime.

It is an emirp because it is prime and its reverse (389936600321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123006639983 - 2⁸ = 123006639727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123006639953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61503319991 + 61503319992.

It is an arithmetic number, because the mean of its divisors is an integer number (61503319992).

Almost surely, 2^123006639983 is an apocalyptic number.

123006639983 is a deficient number, since it is larger than the sum of its proper divisors (1).

123006639983 is an equidigital number, since it uses as much as digits as its factorization.

123006639983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 123006639983 in words is "one hundred twenty-three billion, six million, six hundred thirty-nine thousand, nine hundred eighty-three".