21343133013012 has 36 divisors (see below), whose sum is σ = 53970850999156. Its totient is φ = 7111720045440.

The previous prime is 21343133012941. The next prime is 21343133013043. The reversal of 21343133013012 is 21031033134312.

21343133013012 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 313 + 301 + 30 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6184989937296 + 15158143075716 = 2486964^2 + 3893346^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×21343133013012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110636689 + ... + 110829432.

Almost surely, 2^{21343133013012} is an apocalyptic number.

It is an amenable number.

21343133013012 is an abundant number, since it is smaller than the sum of its proper divisors (32627717986144).

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

21343133013012 is a wasteful number, since it uses less digits than its factorization.

21343133013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221468808 (or 221468803 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 21343133013012 its reverse (21031033134312), we get a palindrome (42374166147324).

The spelling of 21343133013012 in words is "twenty-one trillion, three hundred forty-three billion, one hundred thirty-three million, thirteen thousand, twelve".