503040122403 has 24 divisors (see below), whose sum is σ = 840242845008. Its totient is φ = 265339843776.

The previous prime is 503040122399. The next prime is 503040122419. The reversal of 503040122403 is 304221040305.

It is not a de Polignac number, because 503040122403 - 2² = 503040122399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503040122003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131615076 + ... + 131618897.

It is an arithmetic number, because the mean of its divisors is an integer number (35010118542).

Almost surely, 2^503040122403 is an apocalyptic number.

503040122403 is a deficient number, since it is larger than the sum of its proper divisors (337202722605).

503040122403 is a wasteful number, since it uses less digits than its factorization.

503040122403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263234003 (or 263233996 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 503040122403 its reverse (304221040305), we get a palindrome (807261162708).

The spelling of 503040122403 in words is "five hundred three billion, forty million, one hundred twenty-two thousand, four hundred three".