1111213203 has 8 divisors (see below), whose sum is σ = 1483247616. Its totient is φ = 739993800.

The previous prime is 1111213189. The next prime is 1111213223. The reversal of 1111213203 is 3023121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1111213203 - 2¹⁷ = 1111082131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111213223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200563 + ... + 206028.

It is an arithmetic number, because the mean of its divisors is an integer number (185405952).

Almost surely, 2^1111213203 is an apocalyptic number.

1111213203 is a deficient number, since it is larger than the sum of its proper divisors (372034413).

1111213203 is an equidigital number, since it uses as much as digits as its factorization.

1111213203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407505.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1111213203 is about 33334.8646764915. The cubic root of 1111213203 is about 1035.7758900033.

Adding to 1111213203 its reverse (3023121111), we get a palindrome (4134334314).

The spelling of 1111213203 in words is "one billion, one hundred eleven million, two hundred thirteen thousand, two hundred three".