11103311330421 has 24 divisors (see below), whose sum is σ = 15747431059584. Its totient is φ = 6957506496000.

The previous prime is 11103311330399. The next prime is 11103311330479. The reversal of 11103311330421 is 12403311330111.

It is not a de Polignac number, because 11103311330421 - 2⁶ = 11103311330357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11103311330391 and 11103311330400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103311330821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7875240 + ... + 9177473.

It is an arithmetic number, because the mean of its divisors is an integer number (656142960816).

Almost surely, 2^{11103311330421} is an apocalyptic number.

It is an amenable number.

11103311330421 is a deficient number, since it is larger than the sum of its proper divisors (4644119729163).

11103311330421 is a wasteful number, since it uses less digits than its factorization.

11103311330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17053501 (or 17053484 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11103311330421 its reverse (12403311330111), we get a palindrome (23506622660532).

The spelling of 11103311330421 in words is "eleven trillion, one hundred three billion, three hundred eleven million, three hundred thirty thousand, four hundred twenty-one".