120321321003 has 24 divisors (see below), whose sum is σ = 189802660320. Its totient is φ = 73001013120.

The previous prime is 120321320993. The next prime is 120321321013. The reversal of 120321321003 is 300123123021.

120321321003 is a `hidden beast` number, since 1 + 20 + 321 + 321 + 0 + 0 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (120321320993) and next prime (120321321013).

It is not a de Polignac number, because 120321321003 - 2¹⁷ = 120321189931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120321321013) 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, 7233858 + ... + 7250471.

It is an arithmetic number, because the mean of its divisors is an integer number (7908444180).

Almost surely, 2^120321321003 is an apocalyptic number.

120321321003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120321321003 is a deficient number, since it is larger than the sum of its proper divisors (69481339317).

120321321003 is a wasteful number, since it uses less digits than its factorization.

120321321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14484419 (or 14484416 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 120321321003 its reverse (300123123021), we get a palindrome (420444444024).

The spelling of 120321321003 in words is "one hundred twenty billion, three hundred twenty-one million, three hundred twenty-one thousand, three".