123535344023 has 24 divisors (see below), whose sum is σ = 152921991168. Its totient is φ = 97714704672.

The previous prime is 123535344019. The next prime is 123535344041. The reversal of 123535344023 is 320443535321.

It is not a de Polignac number, because 123535344023 - 2² = 123535344019 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 (123535344043) 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 in 23 ways as a sum of consecutive naturals, for example, 4869590 + ... + 4894892.

It is an arithmetic number, because the mean of its divisors is an integer number (6371749632).

Almost surely, 2^123535344023 is an apocalyptic number.

123535344023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123535344023 is a deficient number, since it is larger than the sum of its proper divisors (29386647145).

123535344023 is a wasteful number, since it uses less digits than its factorization.

123535344023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29463 (or 29450 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 123535344023 its reverse (320443535321), we get a palindrome (443978879344).

The spelling of 123535344023 in words is "one hundred twenty-three billion, five hundred thirty-five million, three hundred forty-four thousand, twenty-three".