123038349911 has 2 divisors, whose sum is σ = 123038349912. Its totient is φ = 123038349910.

The previous prime is 123038349901. The next prime is 123038349979. The reversal of 123038349911 is 119943830321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123038349911 - 2²⁶ = 122971241047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123038349901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61519174955 + 61519174956.

It is an arithmetic number, because the mean of its divisors is an integer number (61519174956).

Almost surely, 2^123038349911 is an apocalyptic number.

123038349911 is a deficient number, since it is larger than the sum of its proper divisors (1).

123038349911 is an equidigital number, since it uses as much as digits as its factorization.

123038349911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 123038349911 in words is "one hundred twenty-three billion, thirty-eight million, three hundred forty-nine thousand, nine hundred eleven".