123730873823 has 4 divisors (see below), whose sum is σ = 124705132800. Its totient is φ = 122756614848.

The previous prime is 123730873811. The next prime is 123730873829. The reversal of 123730873823 is 328378037321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328378037321 = 4211 ⋅77981011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123730873823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123730873829) 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, 487129298 + ... + 487129551.

It is an arithmetic number, because the mean of its divisors is an integer number (31176283200).

Almost surely, 2^123730873823 is an apocalyptic number.

123730873823 is a deficient number, since it is larger than the sum of its proper divisors (974258977).

123730873823 is an equidigital number, since it uses as much as digits as its factorization.

123730873823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974258976.

The product of its (nonzero) digits is 1016064, while the sum is 47.

It can be divided in two parts, 1237308 and 73823, that added together give a palindrome (1311131).

The spelling of 123730873823 in words is "one hundred twenty-three billion, seven hundred thirty million, eight hundred seventy-three thousand, eight hundred twenty-three".