123003303501 has 16 divisors (see below), whose sum is σ = 185915925440. Its totient is φ = 71710427520.

The previous prime is 123003303481. The next prime is 123003303529. The reversal of 123003303501 is 105303300321.

It is not a de Polignac number, because 123003303501 - 2⁷ = 123003303373 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 (123003303571) 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 15 ways as a sum of consecutive naturals, for example, 82997440 + ... + 82998921.

It is an arithmetic number, because the mean of its divisors is an integer number (11619745340).

Almost surely, 2^123003303501 is an apocalyptic number.

It is an amenable number.

123003303501 is a deficient number, since it is larger than the sum of its proper divisors (62912621939).

123003303501 is a wasteful number, since it uses less digits than its factorization.

123003303501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165996396.

The product of its (nonzero) digits is 810, while the sum is 21.

Adding to 123003303501 its reverse (105303300321), we get a palindrome (228306603822).

The spelling of 123003303501 in words is "one hundred twenty-three billion, three million, three hundred three thousand, five hundred one".