21232424132 has 6 divisors (see below), whose sum is σ = 37156742238. Its totient is φ = 10616212064.

The previous prime is 21232424119. The next prime is 21232424141. The reversal of 21232424132 is 23142423212.

It can be written as a sum of positive squares in only one way, i.e., 10622188096 + 10610236036 = 103064^2 + 103006^2 .

It is a super-2 number, since 2×21232424132² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2654053013 + ... + 2654053020.

It is an arithmetic number, because the mean of its divisors is an integer number (6192790373).

Almost surely, 2^21232424132 is an apocalyptic number.

It is an amenable number.

21232424132 is a deficient number, since it is larger than the sum of its proper divisors (15924318106).

21232424132 is a wasteful number, since it uses less digits than its factorization.

21232424132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308106037 (or 5308106035 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

Adding to 21232424132 its reverse (23142423212), we get a palindrome (44374847344).

The spelling of 21232424132 in words is "twenty-one billion, two hundred thirty-two million, four hundred twenty-four thousand, one hundred thirty-two".