12503206316403 has 96 divisors (see below), whose sum is σ = 21429846097920. Its totient is φ = 6940198584000.

The previous prime is 12503206316401. The next prime is 12503206316407. The reversal of 12503206316403 is 30461360230521.

12503206316403 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 3 + 2 + 0 + 6 + 3 + 1 + 640 + 3 = 666.

It is not a de Polignac number, because 12503206316403 - 2¹ = 12503206316401 is a prime.

It is a super-2 number, since 2×12503206316403² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12503206316401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57210648 + ... + 57428778.

It is an arithmetic number, because the mean of its divisors is an integer number (223227563520).

Almost surely, 2^{12503206316403} is an apocalyptic number.

12503206316403 is a deficient number, since it is larger than the sum of its proper divisors (8926639781517).

12503206316403 is a wasteful number, since it uses less digits than its factorization.

12503206316403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219181 (or 219178 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 12503206316403 its reverse (30461360230521), we get a palindrome (42964566546924).

The spelling of 12503206316403 in words is "twelve trillion, five hundred three billion, two hundred six million, three hundred sixteen thousand, four hundred three".