21331430044002 has 96 divisors (see below), whose sum is σ = 52120922974848. Its totient is φ = 6255961924608.

The previous prime is 21331430043997. The next prime is 21331430044061. The reversal of 21331430044002 is 20044003413312.

21331430044002 is a `hidden beast` number, since 2 + 1 + 3 + 314 + 300 + 4 + 40 + 0 + 2 = 666.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5479503 + ... + 8525714.

It is an arithmetic number, because the mean of its divisors is an integer number (542926280988).

Almost surely, 2^{21331430044002} is an apocalyptic number.

21331430044002 is an abundant number, since it is smaller than the sum of its proper divisors (30789492930846).

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

21331430044002 is a wasteful number, since it uses less digits than its factorization.

21331430044002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14005544 (or 14005541 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21331430044002 its reverse (20044003413312), we get a palindrome (41375433457314).

The spelling of 21331430044002 in words is "twenty-one trillion, three hundred thirty-one billion, four hundred thirty million, forty-four thousand, two".