123232023543 has 4 divisors (see below), whose sum is σ = 164309364728. Its totient is φ = 82154682360.

The previous prime is 123232023521. The next prime is 123232023557. The reversal of 123232023543 is 345320232321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345320232321 = 3 ⋅115106744107.

It is not a de Polignac number, because 123232023543 - 2⁸ = 123232023287 is a prime.

It is a super-2 number, since 2×123232023543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123232023543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231023543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20538670588 + ... + 20538670593.

It is an arithmetic number, because the mean of its divisors is an integer number (41077341182).

Almost surely, 2^123232023543 is an apocalyptic number.

123232023543 is a deficient number, since it is larger than the sum of its proper divisors (41077341185).

123232023543 is an equidigital number, since it uses as much as digits as its factorization.

123232023543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41077341184.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 123232023543 its reverse (345320232321), we get a palindrome (468552255864).

The spelling of 123232023543 in words is "one hundred twenty-three billion, two hundred thirty-two million, twenty-three thousand, five hundred forty-three".