111201123321 has 32 divisors (see below), whose sum is σ = 166565543040. Its totient is φ = 73315368000.

The previous prime is 111201123317. The next prime is 111201123323. The reversal of 111201123321 is 123321102111.

It is not a de Polignac number, because 111201123321 - 2² = 111201123317 is a prime.

111201123321 is a modest number, since divided by 123321 gives 111201 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 111201123294 and 111201123303.

It is not an unprimeable number, because it can be changed into a prime (111201123323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2384851 + ... + 2431031.

It is an arithmetic number, because the mean of its divisors is an integer number (5205173220).

Almost surely, 2^111201123321 is an apocalyptic number.

It is an amenable number.

111201123321 is a deficient number, since it is larger than the sum of its proper divisors (55364419719).

111201123321 is a wasteful number, since it uses less digits than its factorization.

111201123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47174 (or 47168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111201123321 its reverse (123321102111), we get a palindrome (234522225432).

The spelling of 111201123321 in words is "one hundred eleven billion, two hundred one million, one hundred twenty-three thousand, three hundred twenty-one".