12726731203 has 4 divisors (see below), whose sum is σ = 12797830440. Its totient is φ = 12655631968.

The previous prime is 12726731161. The next prime is 12726731207. The reversal of 12726731203 is 30213762721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30213762721 = 2437 ⋅12397933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12726731203 is a prime.

It is a super-2 number, since 2×12726731203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12726731207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35549350 + ... + 35549707.

It is an arithmetic number, because the mean of its divisors is an integer number (3199457610).

Almost surely, 2^12726731203 is an apocalyptic number.

12726731203 is a deficient number, since it is larger than the sum of its proper divisors (71099237).

12726731203 is an equidigital number, since it uses as much as digits as its factorization.

12726731203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71099236.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 12726731203 in words is "twelve billion, seven hundred twenty-six million, seven hundred thirty-one thousand, two hundred three".