21343010142 has 8 divisors (see below), whose sum is σ = 42686020296. Its totient is φ = 7114336712.

The previous prime is 21343010131. The next prime is 21343010189. The reversal of 21343010142 is 24101034312.

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

21343010142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778584173 + ... + 1778584184.

It is an arithmetic number, because the mean of its divisors is an integer number (5335752537).

Almost surely, 2^21343010142 is an apocalyptic number.

21343010142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21343010142 is a wasteful number, since it uses less digits than its factorization.

21343010142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557168362.

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

Adding to 21343010142 its reverse (24101034312), we get a palindrome (45444044454).

The spelling of 21343010142 in words is "twenty-one billion, three hundred forty-three million, ten thousand, one hundred forty-two".