1111003213 has 2 divisors, whose sum is σ = 1111003214. Its totient is φ = 1111003212.

The previous prime is 1111003189. The next prime is 1111003219. The reversal of 1111003213 is 3123001111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748405449 + 362597764 = 27357^2 + 19042^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111003213 - 2²⁵ = 1077448781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111003193 and 1111003202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111003219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555501606 + 555501607.

It is an arithmetic number, because the mean of its divisors is an integer number (555501607).

Almost surely, 2^1111003213 is an apocalyptic number.

It is an amenable number.

1111003213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111003213 is an equidigital number, since it uses as much as digits as its factorization.

1111003213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1111003213 is about 33331.7148223730. The cubic root of 1111003213 is about 1035.7106411142.

Adding to 1111003213 its reverse (3123001111), we get a palindrome (4234004324).

The spelling of 1111003213 in words is "one billion, one hundred eleven million, three thousand, two hundred thirteen".