123042335503 has 6 divisors (see below), whose sum is σ = 128624597024. Its totient is φ = 117692668236.

The previous prime is 123042335501. The next prime is 123042335513. The reversal of 123042335503 is 305533240321.

It is not a de Polignac number, because 123042335503 - 2¹ = 123042335501 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 (123042335501) 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 5 ways as a sum of consecutive naturals, for example, 116296575 + ... + 116297632.

Almost surely, 2^123042335503 is an apocalyptic number.

123042335503 is a deficient number, since it is larger than the sum of its proper divisors (5582261521).

123042335503 is an equidigital number, since it uses as much as digits as its factorization.

123042335503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232594253 (or 232594230 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 123042335503 its reverse (305533240321), we get a palindrome (428575575824).

The spelling of 123042335503 in words is "one hundred twenty-three billion, forty-two million, three hundred thirty-five thousand, five hundred three".