2005430034021 has 8 divisors (see below), whose sum is σ = 2814638644320. Its totient is φ = 1266587389872.

The previous prime is 2005430033897. The next prime is 2005430034031. The reversal of 2005430034021 is 1204300345002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2005430034021 - 2¹⁴ = 2005430017637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2005430033982 and 2005430034000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005430034031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17591491470 + ... + 17591491583.

It is an arithmetic number, because the mean of its divisors is an integer number (351829830540).

Almost surely, 2^{2005430034021} is an apocalyptic number.

It is an amenable number.

2005430034021 is a deficient number, since it is larger than the sum of its proper divisors (809208610299).

2005430034021 is a wasteful number, since it uses less digits than its factorization.

2005430034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35182983075.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 2005430034021 its reverse (1204300345002), we get a palindrome (3209730379023).

The spelling of 2005430034021 in words is "two trillion, five billion, four hundred thirty million, thirty-four thousand, twenty-one".