21342130419 has 4 divisors (see below), whose sum is σ = 28456173896. Its totient is φ = 14228086944.

The previous prime is 21342130387. The next prime is 21342130421. The reversal of 21342130419 is 91403124312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21342130419 - 2⁵ = 21342130387 is a prime.

It is a super-2 number, since 2×21342130419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21342130819) 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 3 ways as a sum of consecutive naturals, for example, 3557021734 + ... + 3557021739.

It is an arithmetic number, because the mean of its divisors is an integer number (7114043474).

Almost surely, 2^21342130419 is an apocalyptic number.

21342130419 is a deficient number, since it is larger than the sum of its proper divisors (7114043477).

21342130419 is an equidigital number, since it uses as much as digits as its factorization.

21342130419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114043476.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 21342130419 in words is "twenty-one billion, three hundred forty-two million, one hundred thirty thousand, four hundred nineteen".