1103300021 has 8 divisors (see below), whose sum is σ = 1115683800. Its totient is φ = 1090962432.

The previous prime is 1103299987. The next prime is 1103300039. The reversal of 1103300021 is 1200033011.

It can be written as a sum of positive squares in 4 ways, for example, as 39627025 + 1063672996 = 6295^2 + 32614^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1103300021 - 2⁶ = 1103299957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103299975 and 1103300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103302021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37655 + ... + 60203.

It is an arithmetic number, because the mean of its divisors is an integer number (139460475).

Almost surely, 2^1103300021 is an apocalyptic number.

It is an amenable number.

1103300021 is a deficient number, since it is larger than the sum of its proper divisors (12383779).

1103300021 is a wasteful number, since it uses less digits than its factorization.

1103300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23095.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1103300021 is about 33215.9603353569. The cubic root of 1103300021 is about 1033.3113715647.

Adding to 1103300021 its reverse (1200033011), we get a palindrome (2303333032).

The spelling of 1103300021 in words is "one billion, one hundred three million, three hundred thousand, twenty-one".