21335343112 has 16 divisors (see below), whose sum is σ = 40006789200. Its totient is φ = 10666866000.

The previous prime is 21335343109. The next prime is 21335343149. The reversal of 21335343112 is 21134353312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20439 + ... + 207577.

It is an arithmetic number, because the mean of its divisors is an integer number (2500424325).

Almost surely, 2^21335343112 is an apocalyptic number.

It is an amenable number.

21335343112 is a deficient number, since it is larger than the sum of its proper divisors (18671446088).

21335343112 is a wasteful number, since it uses less digits than its factorization.

21335343112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201396 (or 201392 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

Adding to 21335343112 its reverse (21134353312), we get a palindrome (42469696424).

The spelling of 21335343112 in words is "twenty-one billion, three hundred thirty-five million, three hundred forty-three thousand, one hundred twelve".