1112021120321 has 4 divisors (see below), whose sum is σ = 1112024040192. Its totient is φ = 1112018200452.

The previous prime is 1112021120311. The next prime is 1112021120323. The reversal of 1112021120321 is 1230211202111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112021120321 - 2²² = 1112016926017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112021120321.

It is not an unprimeable number, because it can be changed into a prime (1112021120323) 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, 784505 + ... + 1685078.

It is an arithmetic number, because the mean of its divisors is an integer number (278006010048).

Almost surely, 2^{1112021120321} is an apocalyptic number.

It is an amenable number.

1112021120321 is a deficient number, since it is larger than the sum of its proper divisors (2919871).

1112021120321 is an equidigital number, since it uses as much as digits as its factorization.

1112021120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919870.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1112021120321 its reverse (1230211202111), we get a palindrome (2342232322432).

The spelling of 1112021120321 in words is "one trillion, one hundred twelve billion, twenty-one million, one hundred twenty thousand, three hundred twenty-one".