1103013221 has 2 divisors, whose sum is σ = 1103013222. Its totient is φ = 1103013220.

The previous prime is 1103013217. The next prime is 1103013259. The reversal of 1103013221 is 1223103011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 649536196 + 453477025 = 25486^2 + 21295^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103013221 - 2² = 1103013217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103013196 and 1103013205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103013281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551506610 + 551506611.

It is an arithmetic number, because the mean of its divisors is an integer number (551506611).

Almost surely, 2^1103013221 is an apocalyptic number.

It is an amenable number.

1103013221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103013221 is an equidigital number, since it uses as much as digits as its factorization.

1103013221 is an evil number, because the sum of its binary digits is even.

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

The square root of 1103013221 is about 33211.6428530719. The cubic root of 1103013221 is about 1033.2218282618.

Adding to 1103013221 its reverse (1223103011), we get a palindrome (2326116232).

The spelling of 1103013221 in words is "one billion, one hundred three million, thirteen thousand, two hundred twenty-one".