11103121033 has 4 divisors (see below), whose sum is σ = 11107965508. Its totient is φ = 11098276560.

The previous prime is 11103121027. The next prime is 11103121121. The reversal of 11103121033 is 33012130111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7000334224 + 4102786809 = 83668^2 + 64053^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11103121033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11103120998 and 11103121016.

It is not an unprimeable number, because it can be changed into a prime (11103121013) 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, 2418798 + ... + 2423383.

It is an arithmetic number, because the mean of its divisors is an integer number (2776991377).

Almost surely, 2^11103121033 is an apocalyptic number.

It is an amenable number.

11103121033 is a deficient number, since it is larger than the sum of its proper divisors (4844475).

11103121033 is an equidigital number, since it uses as much as digits as its factorization.

11103121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844474.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11103121033 its reverse (33012130111), we get a palindrome (44115251144).

The spelling of 11103121033 in words is "eleven billion, one hundred three million, one hundred twenty-one thousand, thirty-three".