21143302034 has 8 divisors (see below), whose sum is σ = 31816931328. Its totient is φ = 10537658260.

The previous prime is 21143302027. The next prime is 21143302073. The reversal of 21143302034 is 43020334112.

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

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, 16995602 + ... + 16996845.

It is an arithmetic number, because the mean of its divisors is an integer number (3977116416).

Almost surely, 2^21143302034 is an apocalyptic number.

21143302034 is a deficient number, since it is larger than the sum of its proper divisors (10673629294).

21143302034 is a wasteful number, since it uses less digits than its factorization.

21143302034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33992760.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21143302034 its reverse (43020334112), we get a palindrome (64163636146).

The spelling of 21143302034 in words is "twenty-one billion, one hundred forty-three million, three hundred two thousand, thirty-four".