11103342021 has 12 divisors (see below), whose sum is σ = 16053699948. Its totient is φ = 7395056064.

The previous prime is 11103342017. The next prime is 11103342059. The reversal of 11103342021 is 12024330111.

It can be written as a sum of positive squares in 2 ways, for example, as 6567319521 + 4536022500 = 81039^2 + 67350^2 .

It is not a de Polignac number, because 11103342021 - 2² = 11103342017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11103341985 and 11103342003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103342221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587850 + ... + 606443.

It is an arithmetic number, because the mean of its divisors is an integer number (1337808329).

Almost surely, 2^11103342021 is an apocalyptic number.

It is an amenable number.

11103342021 is a deficient number, since it is larger than the sum of its proper divisors (4950357927).

11103342021 is a wasteful number, since it uses less digits than its factorization.

11103342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195332 (or 1195329 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11103342021 its reverse (12024330111), we get a palindrome (23127672132).

The spelling of 11103342021 in words is "eleven billion, one hundred three million, three hundred forty-two thousand, twenty-one".