1111303313 has 4 divisors (see below), whose sum is σ = 1111435248. Its totient is φ = 1111171380.

The previous prime is 1111303301. The next prime is 1111303327. The reversal of 1111303313 is 3133031111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3133031111 = 7 ⋅447575873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111303313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111303291 and 1111303300.

It is not an unprimeable number, because it can be changed into a prime (1111303373) 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, 52403 + ... + 70488.

It is an arithmetic number, because the mean of its divisors is an integer number (277858812).

Almost surely, 2^1111303313 is an apocalyptic number.

It is an amenable number.

1111303313 is a deficient number, since it is larger than the sum of its proper divisors (131935).

1111303313 is an equidigital number, since it uses as much as digits as its factorization.

1111303313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131934.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1111303313 is about 33336.2162369997. The cubic root of 1111303313 is about 1035.8038868037.

Adding to 1111303313 its reverse (3133031111), we get a palindrome (4244334424).

The spelling of 1111303313 in words is "one billion, one hundred eleven million, three hundred three thousand, three hundred thirteen".