11113405121 has 96 divisors (see below), whose sum is σ = 15976181760. Its totient is φ = 7491585024.

The previous prime is 11113405103. The next prime is 11113405133. The reversal of 11113405121 is 12150431111.

It is not a de Polignac number, because 11113405121 - 2²⁶ = 11046296257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11113405093 and 11113405102.

It is not an unprimeable number, because it can be changed into a prime (11113405181) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11492180 + ... + 11493146.

It is an arithmetic number, because the mean of its divisors is an integer number (166418560).

Almost surely, 2^11113405121 is an apocalyptic number.

It is an amenable number.

11113405121 is a deficient number, since it is larger than the sum of its proper divisors (4862776639).

11113405121 is a wasteful number, since it uses less digits than its factorization.

11113405121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 11113405121 its reverse (12150431111), we get a palindrome (23263836232).

The spelling of 11113405121 in words is "eleven billion, one hundred thirteen million, four hundred five thousand, one hundred twenty-one".