111101321311 has 4 divisors (see below), whose sum is σ = 111105538272. Its totient is φ = 111097104352.

The previous prime is 111101321299. The next prime is 111101321323. The reversal of 111101321311 is 113123101111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113123101111 = 245471 ⋅460841.

It is an interprime number because it is at equal distance from previous prime (111101321299) and next prime (111101321323).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111101321311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101321381) 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, 2068711 + ... + 2121736.

It is an arithmetic number, because the mean of its divisors is an integer number (27776384568).

Almost surely, 2^111101321311 is an apocalyptic number.

111101321311 is a deficient number, since it is larger than the sum of its proper divisors (4216961).

111101321311 is an equidigital number, since it uses as much as digits as its factorization.

111101321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216960.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111101321311 its reverse (113123101111), we get a palindrome (224224422422).

The spelling of 111101321311 in words is "one hundred eleven billion, one hundred one million, three hundred twenty-one thousand, three hundred eleven".