1113220313 has 4 divisors (see below), whose sum is σ = 1113430500. Its totient is φ = 1113010128.

The previous prime is 1113220253. The next prime is 1113220327. The reversal of 1113220313 is 3130223111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 816416329 + 296803984 = 28573^2 + 17228^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113220313 - 2¹² = 1113216217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113220291 and 1113220300.

It is not an unprimeable number, because it can be changed into a prime (1113220373) 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, 96938 + ... + 107811.

It is an arithmetic number, because the mean of its divisors is an integer number (278357625).

Almost surely, 2^1113220313 is an apocalyptic number.

It is an amenable number.

1113220313 is a deficient number, since it is larger than the sum of its proper divisors (210187).

1113220313 is an equidigital number, since it uses as much as digits as its factorization.

1113220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210186.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1113220313 is about 33364.9563614281. The cubic root of 1113220313 is about 1036.3991324578.

Adding to 1113220313 its reverse (3130223111), we get a palindrome (4243443424).

The spelling of 1113220313 in words is "one billion, one hundred thirteen million, two hundred twenty thousand, three hundred thirteen".