120021210003 has 4 divisors (see below), whose sum is σ = 160028280008. Its totient is φ = 80014140000.

The previous prime is 120021209999. The next prime is 120021210007. The reversal of 120021210003 is 300012120021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (120021209999) and next prime (120021210007).

It is not a de Polignac number, because 120021210003 - 2² = 120021209999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021210007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20003534998 + ... + 20003535003.

It is an arithmetic number, because the mean of its divisors is an integer number (40007070002).

Almost surely, 2^120021210003 is an apocalyptic number.

120021210003 is a deficient number, since it is larger than the sum of its proper divisors (40007070005).

120021210003 is an equidigital number, since it uses as much as digits as its factorization.

120021210003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007070004.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 120021210003 its reverse (300012120021), we get a palindrome (420033330024).

The spelling of 120021210003 in words is "one hundred twenty billion, twenty-one million, two hundred ten thousand, three".