11121311313103 has 4 divisors (see below), whose sum is σ = 11309808115080. Its totient is φ = 10932814511128.

The previous prime is 11121311313089. The next prime is 11121311313107. The reversal of 11121311313103 is 30131311312111.

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 11121311313103 - 2¹³ = 11121311304911 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 (11121311313107) 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, 94248400900 + ... + 94248401017.

It is an arithmetic number, because the mean of its divisors is an integer number (2827452028770).

Almost surely, 2^{11121311313103} is an apocalyptic number.

11121311313103 is a deficient number, since it is larger than the sum of its proper divisors (188496801977).

11121311313103 is an equidigital number, since it uses as much as digits as its factorization.

11121311313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188496801976.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 11121311313103 its reverse (30131311312111), we get a palindrome (41252622625214).

The spelling of 11121311313103 in words is "eleven trillion, one hundred twenty-one billion, three hundred eleven million, three hundred thirteen thousand, one hundred three".