21432010431332 has 12 divisors (see below), whose sum is σ = 37573354018620. Its totient is φ = 10696766426016.

The previous prime is 21432010431289. The next prime is 21432010431347. The reversal of 21432010431332 is 23313401023412.

It can be written as a sum of positive squares in 2 ways, for example, as 3791876031076 + 17640134400256 = 1947274^2 + 4200016^2 .

It is a super-2 number, since 2×21432010431332² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21432010431295 and 21432010431304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4809694907 + ... + 4809699362.

It is an arithmetic number, because the mean of its divisors is an integer number (3131112834885).

Almost surely, 2^{21432010431332} is an apocalyptic number.

It is an amenable number.

21432010431332 is a deficient number, since it is larger than the sum of its proper divisors (16141343587288).

21432010431332 is a wasteful number, since it uses less digits than its factorization.

21432010431332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619394830 (or 9619394828 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 21432010431332 its reverse (23313401023412), we get a palindrome (44745411454744).

The spelling of 21432010431332 in words is "twenty-one trillion, four hundred thirty-two billion, ten million, four hundred thirty-one thousand, three hundred thirty-two".