111321002320 has 40 divisors (see below), whose sum is σ = 282350544480. Its totient is φ = 40480364160.

The previous prime is 111321002297. The next prime is 111321002321. The reversal of 111321002320 is 23200123111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 111321002294 and 111321002303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321002321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63249690 + ... + 63251449.

It is an arithmetic number, because the mean of its divisors is an integer number (7058763612).

Almost surely, 2^111321002320 is an apocalyptic number.

111321002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111321002320 is an abundant number, since it is smaller than the sum of its proper divisors (171029542160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111321002320 is a wasteful number, since it uses less digits than its factorization.

111321002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126501163 (or 126501157 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 111321002320 its reverse (23200123111), we get a palindrome (134521125431).

The spelling of 111321002320 in words is "one hundred eleven billion, three hundred twenty-one million, two thousand, three hundred twenty".