1120320321021 has 64 divisors (see below), whose sum is σ = 1848448512000. Its totient is φ = 664924276800.

The previous prime is 1120320321013. The next prime is 1120320321059. The reversal of 1120320321021 is 1201230230211.

1120320321021 is a `hidden beast` number, since 1 + 1 + 2 + 0 + 320 + 321 + 0 + 21 = 666.

It is not a de Polignac number, because 1120320321021 - 2³ = 1120320321013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1120320320985 and 1120320321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120320329021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2963680 + ... + 3320246.

It is an arithmetic number, because the mean of its divisors is an integer number (28882008000).

Almost surely, 2^{1120320321021} is an apocalyptic number.

1120320321021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120320321021 is a deficient number, since it is larger than the sum of its proper divisors (728128190979).

1120320321021 is a wasteful number, since it uses less digits than its factorization.

1120320321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356807 (or 356801 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1120320321021 its reverse (1201230230211), we get a palindrome (2321550551232).

The spelling of 1120320321021 in words is "one trillion, one hundred twenty billion, three hundred twenty million, three hundred twenty-one thousand, twenty-one".