123330001997 has 2 divisors, whose sum is σ = 123330001998. Its totient is φ = 123330001996.

The previous prime is 123330001979. The next prime is 123330002111. The reversal of 123330001997 is 799100033321.

Together with previous prime (123330001979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90848590921 + 32481411076 = 301411^2 + 180226^2 .

It is a cyclic number.

It is not a de Polignac number, because 123330001997 - 2⁶ = 123330001933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123330001997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123330001937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61665000998 + 61665000999.

It is an arithmetic number, because the mean of its divisors is an integer number (61665000999).

Almost surely, 2^123330001997 is an apocalyptic number.

It is an amenable number.

123330001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

123330001997 is an equidigital number, since it uses as much as digits as its factorization.

123330001997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 38.

The spelling of 123330001997 in words is "one hundred twenty-three billion, three hundred thirty million, one thousand, nine hundred ninety-seven".