120321120213 has 24 divisors (see below), whose sum is σ = 198754228608. Its totient is φ = 68710311072.

The previous prime is 120321120197. The next prime is 120321120221. The reversal of 120321120213 is 312021123021.

120321120213 is a `hidden beast` number, since 12 + 0 + 321 + 120 + 213 = 666.

It is not a de Polignac number, because 120321120213 - 2⁴ = 120321120197 is a prime.

It is a super-2 number, since 2×120321120213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521670 + ... + 716087.

It is an arithmetic number, because the mean of its divisors is an integer number (8281426192).

Almost surely, 2^120321120213 is an apocalyptic number.

It is an amenable number.

120321120213 is a deficient number, since it is larger than the sum of its proper divisors (78433108395).

120321120213 is a wasteful number, since it uses less digits than its factorization.

120321120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239313 (or 1239310 counting only the distinct ones).

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

Adding to 120321120213 its reverse (312021123021), we get a palindrome (432342243234).

The spelling of 120321120213 in words is "one hundred twenty billion, three hundred twenty-one million, one hundred twenty thousand, two hundred thirteen".