120421134003 has 16 divisors (see below), whose sum is σ = 160853078016. Its totient is φ = 80135109600.

The previous prime is 120421133993. The next prime is 120421134019. The reversal of 120421134003 is 300431124021.

It is not a de Polignac number, because 120421134003 - 2³⁰ = 119347392179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120421134803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3758176 + ... + 3790082.

It is an arithmetic number, because the mean of its divisors is an integer number (10053317376).

Almost surely, 2^120421134003 is an apocalyptic number.

120421134003 is a deficient number, since it is larger than the sum of its proper divisors (40431944013).

120421134003 is a wasteful number, since it uses less digits than its factorization.

120421134003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34154.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 120421134003 its reverse (300431124021), we get a palindrome (420852258024).

The spelling of 120421134003 in words is "one hundred twenty billion, four hundred twenty-one million, one hundred thirty-four thousand, three".