111303311121 has 24 divisors (see below), whose sum is σ = 166237733376. Its totient is φ = 71687387520.

The previous prime is 111303311117. The next prime is 111303311143. The reversal of 111303311121 is 121113303111.

It is not a de Polignac number, because 111303311121 - 2² = 111303311117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111303311094 and 111303311103.

It is not an unprimeable number, because it can be changed into a prime (111303311321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170925 + ... + 501818.

It is an arithmetic number, because the mean of its divisors is an integer number (6926572224).

Almost surely, 2^111303311121 is an apocalyptic number.

It is an amenable number.

111303311121 is a deficient number, since it is larger than the sum of its proper divisors (54934422255).

111303311121 is a wasteful number, since it uses less digits than its factorization.

111303311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673373 (or 673370 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111303311121 its reverse (121113303111), we get a palindrome (232416614232).

The spelling of 111303311121 in words is "one hundred eleven billion, three hundred three million, three hundred eleven thousand, one hundred twenty-one".