1111220313 has 32 divisors (see below), whose sum is σ = 1728698112. Its totient is φ = 621753600.

The previous prime is 1111220311. The next prime is 1111220333. The reversal of 1111220313 is 3130221111.

It is a happy number.

It is not a de Polignac number, because 1111220313 - 2¹ = 1111220311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111220292 and 1111220301.

It is not an unprimeable number, because it can be changed into a prime (1111220311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1046803 + ... + 1047863.

It is an arithmetic number, because the mean of its divisors is an integer number (54021816).

Almost surely, 2^1111220313 is an apocalyptic number.

It is an amenable number.

1111220313 is a deficient number, since it is larger than the sum of its proper divisors (617477799).

1111220313 is a wasteful number, since it uses less digits than its factorization.

1111220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065.

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

The square root of 1111220313 is about 33334.9713214216. The cubic root of 1111220313 is about 1035.7780991056.

Adding to 1111220313 its reverse (3130221111), we get a palindrome (4241441424).

The spelling of 1111220313 in words is "one billion, one hundred eleven million, two hundred twenty thousand, three hundred thirteen".