21343334112 has 60 divisors (see below), whose sum is σ = 62770160376. Its totient is φ = 7114443840.

The previous prime is 21343334093. The next prime is 21343334141. The reversal of 21343334112 is 21143334312.

It is a happy number.

21343334112 is a `hidden beast` number, since 213 + 4 + 3 + 33 + 411 + 2 = 666.

It is a super-2 number, since 2×21343334112² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 4114564 + ... + 4119747.

Almost surely, 2^21343334112 is an apocalyptic number.

It is an amenable number.

21343334112 is an abundant number, since it is smaller than the sum of its proper divisors (41426826264).

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

21343334112 is an equidigital number, since it uses as much as digits as its factorization.

21343334112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234333 (or 8234316 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 21343334112 its reverse (21143334312), we get a palindrome (42486668424).

The spelling of 21343334112 in words is "twenty-one billion, three hundred forty-three million, three hundred thirty-four thousand, one hundred twelve".