123840468073 has 4 divisors (see below), whose sum is σ = 141531963520. Its totient is φ = 106148972628.

The previous prime is 123840468067. The next prime is 123840468077. The reversal of 123840468073 is 370864048321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123840468073 - 2⁹ = 123840467561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123840468077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8845747713 + ... + 8845747726.

It is an arithmetic number, because the mean of its divisors is an integer number (35382990880).

Almost surely, 2^123840468073 is an apocalyptic number.

It is an amenable number.

123840468073 is a deficient number, since it is larger than the sum of its proper divisors (17691495447).

123840468073 is an equidigital number, since it uses as much as digits as its factorization.

123840468073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17691495446.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 123840468073 in words is "one hundred twenty-three billion, eight hundred forty million, four hundred sixty-eight thousand, seventy-three".