21000032323012 has 24 divisors (see below), whose sum is σ = 37033500474432. Its totient is φ = 10419044781600.

The previous prime is 21000032323001. The next prime is 21000032323019. The reversal of 21000032323012 is 21032323000012.

It is not an unprimeable number, because it can be changed into a prime (21000032323019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5129433 + ... + 8265055.

It is an arithmetic number, because the mean of its divisors is an integer number (1543062519768).

Almost surely, 2^{21000032323012} is an apocalyptic number.

It is an amenable number.

21000032323012 is a deficient number, since it is larger than the sum of its proper divisors (16033468151420).

21000032323012 is a wasteful number, since it uses less digits than its factorization.

21000032323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148539 (or 3148537 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21000032323012 its reverse (21032323000012), we get a palindrome (42032355323024).

The spelling of 21000032323012 in words is "twenty-one trillion, thirty-two million, three hundred twenty-three thousand, twelve".