20410430421 has 16 divisors (see below), whose sum is σ = 27615264768. Its totient is φ = 13406526000.

The previous prime is 20410430407. The next prime is 20410430471. The reversal of 20410430421 is 12403401402.

It is not a de Polignac number, because 20410430421 - 2⁶ = 20410430357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410430471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303196 + ... + 364346.

It is an arithmetic number, because the mean of its divisors is an integer number (1725954048).

Almost surely, 2^20410430421 is an apocalyptic number.

It is an amenable number.

20410430421 is a deficient number, since it is larger than the sum of its proper divisors (7204834347).

20410430421 is a wasteful number, since it uses less digits than its factorization.

20410430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62792.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20410430421 its reverse (12403401402), we get a palindrome (32813831823).

The spelling of 20410430421 in words is "twenty billion, four hundred ten million, four hundred thirty thousand, four hundred twenty-one".