13012311203 has 4 divisors (see below), whose sum is σ = 13578063888. Its totient is φ = 12446558520.

The previous prime is 13012311187. The next prime is 13012311217. The reversal of 13012311203 is 30211321031.

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 13012311203 - 2⁴ = 13012311187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012311703) 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, 282876308 + ... + 282876353.

It is an arithmetic number, because the mean of its divisors is an integer number (3394515972).

Almost surely, 2^13012311203 is an apocalyptic number.

13012311203 is a deficient number, since it is larger than the sum of its proper divisors (565752685).

13012311203 is an equidigital number, since it uses as much as digits as its factorization.

13012311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565752684.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13012311203 its reverse (30211321031), we get a palindrome (43223632234).

The spelling of 13012311203 in words is "thirteen billion, twelve million, three hundred eleven thousand, two hundred three".