1111220013103 has 4 divisors (see below), whose sum is σ = 1112590198888. Its totient is φ = 1109849827320.

The previous prime is 1111220013097. The next prime is 1111220013119. The reversal of 1111220013103 is 3013100221111.

It is a happy number.

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 1111220013103 - 2²⁵ = 1111186458671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111220011103) 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, 685091676 + ... + 685093297.

It is an arithmetic number, because the mean of its divisors is an integer number (278147549722).

Almost surely, 2^{1111220013103} is an apocalyptic number.

1111220013103 is a deficient number, since it is larger than the sum of its proper divisors (1370185785).

1111220013103 is an equidigital number, since it uses as much as digits as its factorization.

1111220013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370185784.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1111220013103 its reverse (3013100221111), we get a palindrome (4124320234214).

The spelling of 1111220013103 in words is "one trillion, one hundred eleven billion, two hundred twenty million, thirteen thousand, one hundred three".