1311113041103 has 4 divisors (see below), whose sum is σ = 1311450873648. Its totient is φ = 1310775208560.

The previous prime is 1311113041099. The next prime is 1311113041123. The reversal of 1311113041103 is 3011403111131.

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 1311113041103 - 2² = 1311113041099 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 (1311113041123) 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, 168910451 + ... + 168918212.

It is an arithmetic number, because the mean of its divisors is an integer number (327862718412).

Almost surely, 2^{1311113041103} is an apocalyptic number.

1311113041103 is a deficient number, since it is larger than the sum of its proper divisors (337832545).

1311113041103 is an equidigital number, since it uses as much as digits as its factorization.

1311113041103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337832544.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1311113041103 its reverse (3011403111131), we get a palindrome (4322516152234).

The spelling of 1311113041103 in words is "one trillion, three hundred eleven billion, one hundred thirteen million, forty-one thousand, one hundred three".