21343203338 has 8 divisors (see below), whose sum is σ = 32759335488. Its totient is φ = 10423424844.

The previous prime is 21343203337. The next prime is 21343203347. The reversal of 21343203338 is 83330234312.

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

It is not an unprimeable number, because it can be changed into a prime (21343203337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124088306 + ... + 124088477.

It is an arithmetic number, because the mean of its divisors is an integer number (4094916936).

Almost surely, 2^21343203338 is an apocalyptic number.

21343203338 is a deficient number, since it is larger than the sum of its proper divisors (11416132150).

21343203338 is a wasteful number, since it uses less digits than its factorization.

21343203338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248176828.

The product of its (nonzero) digits is 31104, while the sum is 32.

The spelling of 21343203338 in words is "twenty-one billion, three hundred forty-three million, two hundred three thousand, three hundred thirty-eight".