11103403443121 has 8 divisors (see below), whose sum is σ = 12117308364000. Its totient is φ = 10090249290240.

The previous prime is 11103403443091. The next prime is 11103403443173. The reversal of 11103403443121 is 12134430430111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11103403443121 is a prime.

It is a super-2 number, since 2×11103403443121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11103403443121.

It is not an unprimeable number, because it can be changed into a prime (11103403443191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187661071 + ... + 187720228.

It is an arithmetic number, because the mean of its divisors is an integer number (1514663545500).

Almost surely, 2^{11103403443121} is an apocalyptic number.

11103403443121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11103403443121 is a deficient number, since it is larger than the sum of its proper divisors (1013904920879).

11103403443121 is a wasteful number, since it uses less digits than its factorization.

11103403443121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375383999.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 11103403443121 its reverse (12134430430111), we get a palindrome (23237833873232).

The spelling of 11103403443121 in words is "eleven trillion, one hundred three billion, four hundred three million, four hundred forty-three thousand, one hundred twenty-one".