21233023132 has 24 divisors (see below), whose sum is σ = 37802746800. Its totient is φ = 10432382976.

The previous prime is 21233023121. The next prime is 21233023151. The reversal of 21233023132 is 23132033212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618844 + ... + 652252.

It is an arithmetic number, because the mean of its divisors is an integer number (1575114450).

Almost surely, 2^21233023132 is an apocalyptic number.

It is an amenable number.

21233023132 is a deficient number, since it is larger than the sum of its proper divisors (16569723668).

21233023132 is a wasteful number, since it uses less digits than its factorization.

21233023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36165 (or 36163 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21233023132 its reverse (23132033212), we get a palindrome (44365056344).

The spelling of 21233023132 in words is "twenty-one billion, two hundred thirty-three million, twenty-three thousand, one hundred thirty-two".