21233310132 has 48 divisors (see below), whose sum is σ = 52343343360. Its totient is φ = 6688305792.

The previous prime is 21233310121. The next prime is 21233310151. The reversal of 21233310132 is 23101333212.

It is a super-3 number, since 3×21233310132³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21233310099 and 21233310108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632743 + ... + 665454.

It is an arithmetic number, because the mean of its divisors is an integer number (1090486320).

Almost surely, 2^21233310132 is an apocalyptic number.

It is an amenable number.

21233310132 is an abundant number, since it is smaller than the sum of its proper divisors (31110033228).

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

21233310132 is a wasteful number, since it uses less digits than its factorization.

21233310132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298280 (or 1298278 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21233310132 its reverse (23101333212), we get a palindrome (44334643344).

The spelling of 21233310132 in words is "twenty-one billion, two hundred thirty-three million, three hundred ten thousand, one hundred thirty-two".