1111323311 has 16 divisors (see below), whose sum is σ = 1305658368. Its totient is φ = 926251200.

The previous prime is 1111323299. The next prime is 1111323329. The reversal of 1111323311 is 1133231111.

It is not a de Polignac number, because 1111323311 - 2¹⁸ = 1111061167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111323311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111323391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20966 + ... + 51596.

It is an arithmetic number, because the mean of its divisors is an integer number (81603648).

Almost surely, 2^1111323311 is an apocalyptic number.

1111323311 is a deficient number, since it is larger than the sum of its proper divisors (194335057).

1111323311 is an equidigital number, since it uses as much as digits as its factorization.

1111323311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30782.

The product of its digits is 54, while the sum is 17.

The square root of 1111323311 is about 33336.5161797090. The cubic root of 1111323311 is about 1035.8100998935.

Adding to 1111323311 its reverse (1133231111), we get a palindrome (2244554422).

The spelling of 1111323311 in words is "one billion, one hundred eleven million, three hundred twenty-three thousand, three hundred eleven".