21233020232 has 16 divisors (see below), whose sum is σ = 40315862400. Its totient is φ = 10482123600.

The previous prime is 21233020231. The next prime is 21233020253. The reversal of 21233020232 is 23202033212.

It is a super-2 number, since 2×21233020232² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21233020231) 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, 16797644 + ... + 16798907.

It is an arithmetic number, because the mean of its divisors is an integer number (2519741400).

Almost surely, 2^21233020232 is an apocalyptic number.

It is an amenable number.

21233020232 is a deficient number, since it is larger than the sum of its proper divisors (19082842168).

21233020232 is a wasteful number, since it uses less digits than its factorization.

21233020232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33596636 (or 33596632 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21233020232 its reverse (23202033212), we get a palindrome (44435053444).

The spelling of 21233020232 in words is "twenty-one billion, two hundred thirty-three million, twenty thousand, two hundred thirty-two".