123101311423 has 4 divisors (see below), whose sum is σ = 123916552048. Its totient is φ = 122286070800.

The previous prime is 123101311379. The next prime is 123101311439. The reversal of 123101311423 is 324113101321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123101311423 - 2²⁹ = 122564440511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123101311394 and 123101311403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101311453) 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, 407620086 + ... + 407620387.

It is an arithmetic number, because the mean of its divisors is an integer number (30979138012).

Almost surely, 2^123101311423 is an apocalyptic number.

123101311423 is a deficient number, since it is larger than the sum of its proper divisors (815240625).

123101311423 is an equidigital number, since it uses as much as digits as its factorization.

123101311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815240624.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 123101311423 its reverse (324113101321), we get a palindrome (447214412744).

The spelling of 123101311423 in words is "one hundred twenty-three billion, one hundred one million, three hundred eleven thousand, four hundred twenty-three".