111121042321 has 8 divisors (see below), whose sum is σ = 112316266944. Its totient is φ = 109932125520.

The previous prime is 111121042289. The next prime is 111121042339. The reversal of 111121042321 is 123240121111.

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 111121042321 - 2⁵ = 111121042289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111121043321) 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, 1541530 + ... + 1612003.

It is an arithmetic number, because the mean of its divisors is an integer number (14039533368).

Almost surely, 2^111121042321 is an apocalyptic number.

It is an amenable number.

111121042321 is a deficient number, since it is larger than the sum of its proper divisors (1195224623).

111121042321 is a wasteful number, since it uses less digits than its factorization.

111121042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153911.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111121042321 its reverse (123240121111), we get a palindrome (234361163432).

The spelling of 111121042321 in words is "one hundred eleven billion, one hundred twenty-one million, forty-two thousand, three hundred twenty-one".