120321011112021 has 6 divisors (see below), whose sum is σ = 173797016050710. Its totient is φ = 80214007408008.

The previous prime is 120321011111957. The next prime is 120321011112047. The reversal of 120321011112021 is 120211110123021.

It is a happy number.

120321011112021 is a `hidden beast` number, since 1 + 203 + 210 + 111 + 120 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 88833358271025 + 31487652840996 = 9425145^2 + 5611386^2 .

It is not a de Polignac number, because 120321011112021 - 2⁶ = 120321011111957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120321011111985 and 120321011112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321011112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6684500617326 + ... + 6684500617343.

It is an arithmetic number, because the mean of its divisors is an integer number (28966169341785).

Almost surely, 2^{120321011112021} is an apocalyptic number.

It is an amenable number.

120321011112021 is a deficient number, since it is larger than the sum of its proper divisors (53476004938689).

120321011112021 is a wasteful number, since it uses less digits than its factorization.

120321011112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13369001234675 (or 13369001234672 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 120321011112021 its reverse (120211110123021), we get a palindrome (240532121235042).

The spelling of 120321011112021 in words is "one hundred twenty trillion, three hundred twenty-one billion, eleven million, one hundred twelve thousand, twenty-one".