120003504321 has 4 divisors (see below), whose sum is σ = 160004672432. Its totient is φ = 80002336212.

The previous prime is 120003504319. The next prime is 120003504331. The reversal of 120003504321 is 123405300021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120003504321 - 2¹ = 120003504319 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120003504331) 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, 20000584051 + ... + 20000584056.

It is an arithmetic number, because the mean of its divisors is an integer number (40001168108).

Almost surely, 2^120003504321 is an apocalyptic number.

It is an amenable number.

120003504321 is a deficient number, since it is larger than the sum of its proper divisors (40001168111).

120003504321 is an equidigital number, since it uses as much as digits as its factorization.

120003504321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40001168110.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 120003504321 its reverse (123405300021), we get a palindrome (243408804342).

The spelling of 120003504321 in words is "one hundred twenty billion, three million, five hundred four thousand, three hundred twenty-one".