13311221310203 has 4 divisors (see below), whose sum is σ = 13740615546048. Its totient is φ = 12881827074360.

The previous prime is 13311221310157. The next prime is 13311221310221. The reversal of 13311221310203 is 30201312211331.

13311221310203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13311221310203 - 2⁶ = 13311221310139 is a prime.

It is a super-2 number, since 2×13311221310203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311221318203) 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, 214697117876 + ... + 214697117937.

It is an arithmetic number, because the mean of its divisors is an integer number (3435153886512).

Almost surely, 2^{13311221310203} is an apocalyptic number.

13311221310203 is a deficient number, since it is larger than the sum of its proper divisors (429394235845).

13311221310203 is an equidigital number, since it uses as much as digits as its factorization.

13311221310203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429394235844.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13311221310203 its reverse (30201312211331), we get a palindrome (43512533521534).

The spelling of 13311221310203 in words is "thirteen trillion, three hundred eleven billion, two hundred twenty-one million, three hundred ten thousand, two hundred three".