1111213003 has 4 divisors (see below), whose sum is σ = 1111281120. Its totient is φ = 1111144888.

The previous prime is 1111213001. The next prime is 1111213031. The reversal of 1111213003 is 3003121111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1111213003 - 2¹ = 1111213001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111213001) 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, 6558 + ... + 47596.

It is an arithmetic number, because the mean of its divisors is an integer number (277820280).

Almost surely, 2^1111213003 is an apocalyptic number.

1111213003 is a deficient number, since it is larger than the sum of its proper divisors (68117).

1111213003 is an equidigital number, since it uses as much as digits as its factorization.

1111213003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116.

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

The square root of 1111213003 is about 33334.8616766292. The cubic root of 1111213003 is about 1035.7758278625.

Adding to 1111213003 its reverse (3003121111), we get a palindrome (4114334114).

The spelling of 1111213003 in words is "one billion, one hundred eleven million, two hundred thirteen thousand, three".