2005421130051 has 16 divisors (see below), whose sum is σ = 2817279037440. Its totient is φ = 1265387965920.

The previous prime is 2005421130043. The next prime is 2005421130073. The reversal of 2005421130051 is 1500311245002.

It is a happy number.

It is not a de Polignac number, because 2005421130051 - 2³ = 2005421130043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005421130551) 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, 16519555 + ... + 16640508.

It is an arithmetic number, because the mean of its divisors is an integer number (176079939840).

Almost surely, 2^{2005421130051} is an apocalyptic number.

2005421130051 is a deficient number, since it is larger than the sum of its proper divisors (811857907389).

2005421130051 is a wasteful number, since it uses less digits than its factorization.

2005421130051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33161146.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 2005421130051 its reverse (1500311245002), we get a palindrome (3505732375053).

The spelling of 2005421130051 in words is "two trillion, five billion, four hundred twenty-one million, one hundred thirty thousand, fifty-one".