1111312213 has 8 divisors (see below), whose sum is σ = 1232215776. Its totient is φ = 993721200.

The previous prime is 1111312201. The next prime is 1111312247. The reversal of 1111312213 is 3122131111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1111312213 - 2²⁵ = 1077757781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111312283) 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, 827431 + ... + 828772.

It is an arithmetic number, because the mean of its divisors is an integer number (154026972).

Almost surely, 2^1111312213 is an apocalyptic number.

It is an amenable number.

1111312213 is a deficient number, since it is larger than the sum of its proper divisors (120903563).

1111312213 is a wasteful number, since it uses less digits than its factorization.

1111312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656275.

The product of its digits is 36, while the sum is 16.

The square root of 1111312213 is about 33336.3497251874. The cubic root of 1111312213 is about 1035.8066519144.

Adding to 1111312213 its reverse (3122131111), we get a palindrome (4233443324).

It can be divided in two parts, 1111 and 312213, that multiplied together give a palindrome (346868643).

The spelling of 1111312213 in words is "one billion, one hundred eleven million, three hundred twelve thousand, two hundred thirteen".