1103213321 has 8 divisors (see below), whose sum is σ = 1327174080. Its totient is φ = 895842288.

The previous prime is 1103213311. The next prime is 1103213339. The reversal of 1103213321 is 1233123011.

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 1103213321 - 2⁶ = 1103213257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103213321.

It is not an unprimeable number, because it can be changed into a prime (1103213311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4147286 + ... + 4147551.

It is an arithmetic number, because the mean of its divisors is an integer number (165896760).

Almost surely, 2^1103213321 is an apocalyptic number.

It is an amenable number.

1103213321 is a deficient number, since it is larger than the sum of its proper divisors (223960759).

1103213321 is an equidigital number, since it uses as much as digits as its factorization.

1103213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8294863.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1103213321 is about 33214.6552142273. The cubic root of 1103213321 is about 1033.2843041485.

Adding to 1103213321 its reverse (1233123011), we get a palindrome (2336336332).

The spelling of 1103213321 in words is "one billion, one hundred three million, two hundred thirteen thousand, three hundred twenty-one".