1111323111311 has 8 divisors (see below), whose sum is σ = 1336930058880. Its totient is φ = 902427789528.

The previous prime is 1111323111293. The next prime is 1111323111329. The reversal of 1111323111311 is 1131113231111.

It is an interprime number because it is at equal distance from previous prime (1111323111293) and next prime (1111323111329).

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 1111323111311 - 2²⁶ = 1111256002447 is a prime.

It is a super-2 number, since 2×1111323111311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111323111331) 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 7 ways as a sum of consecutive naturals, for example, 4177906301 + ... + 4177906566.

It is an arithmetic number, because the mean of its divisors is an integer number (167116257360).

Almost surely, 2^{1111323111311} is an apocalyptic number.

1111323111311 is a deficient number, since it is larger than the sum of its proper divisors (225606947569).

1111323111311 is an equidigital number, since it uses as much as digits as its factorization.

1111323111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355812893.

The product of its digits is 54, while the sum is 20.

Adding to 1111323111311 its reverse (1131113231111), we get a palindrome (2242436342422).

The spelling of 1111323111311 in words is "one trillion, one hundred eleven billion, three hundred twenty-three million, one hundred eleven thousand, three hundred eleven".