120321123021 has 24 divisors (see below), whose sum is σ = 190244055456. Its totient is φ = 72672995040.

The previous prime is 120321123011. The next prime is 120321123061.

120321123021 is a `hidden beast` number, since 1 + 203 + 211 + 230 + 21 = 666.

120321123021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 120321123021 - 2²³ = 120312734413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120321122985 and 120321123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321123011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2044995 + ... + 2103008.

It is an arithmetic number, because the mean of its divisors is an integer number (7926835644).

Almost surely, 2^120321123021 is an apocalyptic number.

120321123021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120321123021 is a deficient number, since it is larger than the sum of its proper divisors (69922932435).

120321123021 is a wasteful number, since it uses less digits than its factorization.

120321123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148313 (or 4148310 counting only the distinct ones).

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

It can be divided in two parts, 120321 and 123021, that added together give a palindrome (243342).

The spelling of 120321123021 in words is "one hundred twenty billion, three hundred twenty-one million, one hundred twenty-three thousand, twenty-one".