13111220031003 has 20 divisors (see below), whose sum is σ = 19878223412520. Its totient is φ = 8610353449632.

The previous prime is 13111220030999. The next prime is 13111220031071. The reversal of 13111220031003 is 30013002211131.

13111220031003 is a `hidden beast` number, since 131 + 1 + 1 + 220 + 0 + 310 + 0 + 3 = 666.

It is not a de Polignac number, because 13111220031003 - 2² = 13111220030999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13111220031073) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1207956618 + ... + 1207967471.

It is an arithmetic number, because the mean of its divisors is an integer number (993911170626).

Almost surely, 2^{13111220031003} is an apocalyptic number.

13111220031003 is a deficient number, since it is larger than the sum of its proper divisors (6767003381517).

13111220031003 is an equidigital number, since it uses as much as digits as its factorization.

13111220031003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415924168 (or 2415924159 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13111220031003 its reverse (30013002211131), we get a palindrome (43124222242134).

The spelling of 13111220031003 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty million, thirty-one thousand, three".