21133240002432 has 96 divisors (see below), whose sum is σ = 60820378168680. Its totient is φ = 7043570193408.

The previous prime is 21133240002431. The next prime is 21133240002439. The reversal of 21133240002432 is 23420004233112.

21133240002432 is a `hidden beast` number, since 2 + 1 + 13 + 3 + 2 + 400 + 0 + 243 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×21133240002432² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21133240002396 and 21133240002405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133240002431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8568178 + ... + 10755470.

Almost surely, 2^{21133240002432} is an apocalyptic number.

It is an amenable number.

21133240002432 is an abundant number, since it is smaller than the sum of its proper divisors (39687138166248).

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

21133240002432 is a wasteful number, since it uses less digits than its factorization.

21133240002432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195700 (or 2195685 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21133240002432 its reverse (23420004233112), we get a palindrome (44553244235544).

The spelling of 21133240002432 in words is "twenty-one trillion, one hundred thirty-three billion, two hundred forty million, two thousand, four hundred thirty-two".