21120030320002 has 32 divisors (see below), whose sum is σ = 36130169275200. Its totient is φ = 9196770336768.

The previous prime is 21120030319957. The next prime is 21120030320009. The reversal of 21120030320002 is 20002303002112.

It is not an unprimeable number, because it can be changed into a prime (21120030320009) 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 15 ways as a sum of consecutive naturals, for example, 380129727 + ... + 380185282.

It is an arithmetic number, because the mean of its divisors is an integer number (1129067789850).

Almost surely, 2^{21120030320002} is an apocalyptic number.

21120030320002 is a deficient number, since it is larger than the sum of its proper divisors (15010138955198).

21120030320002 is a wasteful number, since it uses less digits than its factorization.

21120030320002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760315090.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21120030320002 its reverse (20002303002112), we get a palindrome (41122333322114).

The spelling of 21120030320002 in words is "twenty-one trillion, one hundred twenty billion, thirty million, three hundred twenty thousand, two".