123535315923 has 4 divisors (see below), whose sum is σ = 164713754568. Its totient is φ = 82356877280.

The previous prime is 123535315909. The next prime is 123535315957. The reversal of 123535315923 is 329513535321.

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 123535315923 - 2⁹ = 123535315411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123535315963) 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, 20589219318 + ... + 20589219323.

It is an arithmetic number, because the mean of its divisors is an integer number (41178438642).

Almost surely, 2^123535315923 is an apocalyptic number.

123535315923 is a deficient number, since it is larger than the sum of its proper divisors (41178438645).

123535315923 is an equidigital number, since it uses as much as digits as its factorization.

123535315923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41178438644.

The product of its digits is 364500, while the sum is 42.

The spelling of 123535315923 in words is "one hundred twenty-three billion, five hundred thirty-five million, three hundred fifteen thousand, nine hundred twenty-three".