13261723003 has 4 divisors (see below), whose sum is σ = 13269047688. Its totient is φ = 13254398320.

The previous prime is 13261722989. The next prime is 13261723031. The reversal of 13261723003 is 30032716231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13261723003 - 2²¹ = 13259625851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13261723073) 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, 3659626 + ... + 3663247.

It is an arithmetic number, because the mean of its divisors is an integer number (3317261922).

Almost surely, 2^13261723003 is an apocalyptic number.

13261723003 is a deficient number, since it is larger than the sum of its proper divisors (7324685).

13261723003 is an equidigital number, since it uses as much as digits as its factorization.

13261723003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324684.

The product of its (nonzero) digits is 4536, while the sum is 28.

The spelling of 13261723003 in words is "thirteen billion, two hundred sixty-one million, seven hundred twenty-three thousand, three".