21323233312 has 24 divisors (see below), whose sum is σ = 41983425792. Its totient is φ = 10660776000.

The previous prime is 21323233307. The next prime is 21323233313. The reversal of 21323233312 is 21333232312.

It is not an unprimeable number, because it can be changed into a prime (21323233313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668937 + ... + 700087.

It is an arithmetic number, because the mean of its divisors is an integer number (1749309408).

Almost surely, 2^21323233312 is an apocalyptic number.

It is an amenable number.

21323233312 is a deficient number, since it is larger than the sum of its proper divisors (20660192480).

21323233312 is a wasteful number, since it uses less digits than its factorization.

21323233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52552 (or 52544 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

Adding to 21323233312 its reverse (21333232312), we get a palindrome (42656465624).

The spelling of 21323233312 in words is "twenty-one billion, three hundred twenty-three million, two hundred thirty-three thousand, three hundred twelve".