21332123232312 has 32 divisors (see below), whose sum is σ = 53339792734080. Its totient is φ = 7109443123680.

The previous prime is 21332123232281. The next prime is 21332123232401. The reversal of 21332123232312 is 21323232123312.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21332123232312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78901014 + ... + 79170917.

It is an arithmetic number, because the mean of its divisors is an integer number (1666868522940).

Almost surely, 2^{21332123232312} is an apocalyptic number.

It is an amenable number.

21332123232312 is an abundant number, since it is smaller than the sum of its proper divisors (32007669501768).

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

21332123232312 is a wasteful number, since it uses less digits than its factorization.

21332123232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158077563 (or 158077559 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

Adding to 21332123232312 its reverse (21323232123312), we get a palindrome (42655355355624).

The spelling of 21332123232312 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred twenty-three million, two hundred thirty-two thousand, three hundred twelve".