21341134240012 has 24 divisors (see below), whose sum is σ = 38105589664800. Its totient is φ = 10456001241600.

The previous prime is 21341134240009. The next prime is 21341134240037. The reversal of 21341134240012 is 21004243114312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272252512 + ... + 272330887.

It is an arithmetic number, because the mean of its divisors is an integer number (1587732902700).

Almost surely, 2^{21341134240012} is an apocalyptic number.

It is an amenable number.

21341134240012 is a deficient number, since it is larger than the sum of its proper divisors (16764455424788).

21341134240012 is a wasteful number, since it uses less digits than its factorization.

21341134240012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544583601 (or 544583599 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21341134240012 its reverse (21004243114312), we get a palindrome (42345377354324).

The spelling of 21341134240012 in words is "twenty-one trillion, three hundred forty-one billion, one hundred thirty-four million, two hundred forty thousand, twelve".