1100003213 has 4 divisors (see below), whose sum is σ = 1115496288. Its totient is φ = 1084510140.

The previous prime is 1100003197. The next prime is 1100003231. The reversal of 1100003213 is 3123000011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100003213 - 2⁴ = 1100003197 is a prime.

It is a super-2 number, since 2×1100003213² = 2420014137220646738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100003194 and 1100003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100003713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7746431 + ... + 7746572.

It is an arithmetic number, because the mean of its divisors is an integer number (278874072).

Almost surely, 2^1100003213 is an apocalyptic number.

It is an amenable number.

1100003213 is a deficient number, since it is larger than the sum of its proper divisors (15493075).

1100003213 is an equidigital number, since it uses as much as digits as its factorization.

1100003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15493074.

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

The square root of 1100003213 is about 33166.2963413161. The cubic root of 1100003213 is about 1032.2811205208.

Adding to 1100003213 its reverse (3123000011), we get a palindrome (4223003224).

The spelling of 1100003213 in words is "one billion, one hundred million, three thousand, two hundred thirteen".