21302320233012 has 144 divisors (see below), whose sum is σ = 63174514015872. Its totient is φ = 5466351121920.

The previous prime is 21302320232951. The next prime is 21302320233067. The reversal of 21302320233012 is 21033202320312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19752939 + ... + 20803442.

It is an arithmetic number, because the mean of its divisors is an integer number (438711902888).

Almost surely, 2^{21302320233012} is an apocalyptic number.

It is an amenable number.

21302320233012 is an abundant number, since it is smaller than the sum of its proper divisors (41872193782860).

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

21302320233012 is a wasteful number, since it uses less digits than its factorization.

21302320233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40556458 (or 40556443 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21302320233012 its reverse (21033202320312), we get a palindrome (42335522553324).

The spelling of 21302320233012 in words is "twenty-one trillion, three hundred two billion, three hundred twenty million, two hundred thirty-three thousand, twelve".