21230333310012 has 48 divisors (see below), whose sum is σ = 50477241249792. Its totient is φ = 6942548208960.

The previous prime is 21230333309993. The next prime is 21230333310059. The reversal of 21230333310012 is 21001333303212.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4587093 + ... + 7968819.

It is an arithmetic number, because the mean of its divisors is an integer number (1051609192704).

Almost surely, 2^{21230333310012} is an apocalyptic number.

It is an amenable number.

21230333310012 is an abundant number, since it is smaller than the sum of its proper divisors (29246907939780).

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

21230333310012 is a wasteful number, since it uses less digits than its factorization.

21230333310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391658 (or 3391656 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21230333310012 its reverse (21001333303212), we get a palindrome (42231666613224).

The spelling of 21230333310012 in words is "twenty-one trillion, two hundred thirty billion, three hundred thirty-three million, three hundred ten thousand, twelve".