1103031221 has 8 divisors (see below), whose sum is σ = 1129028544. Its totient is φ = 1077324640.

The previous prime is 1103031199. The next prime is 1103031229. The reversal of 1103031221 is 1221303011.

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 1103031221 - 2¹⁸ = 1102769077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103031196 and 1103031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103031229) 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 7 ways as a sum of consecutive naturals, for example, 65000 + ... + 80193.

It is an arithmetic number, because the mean of its divisors is an integer number (141128568).

Almost surely, 2^1103031221 is an apocalyptic number.

It is an amenable number.

1103031221 is a deficient number, since it is larger than the sum of its proper divisors (25997323).

1103031221 is a wasteful number, since it uses less digits than its factorization.

1103031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145371.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1103031221 is about 33211.9138412709. The cubic root of 1103031221 is about 1033.2274485909.

Adding to 1103031221 its reverse (1221303011), we get a palindrome (2324334232).

The spelling of 1103031221 in words is "one billion, one hundred three million, thirty-one thousand, two hundred twenty-one".