43212135132 has 72 divisors (see below), whose sum is σ = 114018113664. Its totient is φ = 13773155616.

The previous prime is 43212135103. The next prime is 43212135173. The reversal of 43212135132 is 23153121234.

43212135132 is a `hidden beast` number, since 432 + 1 + 213 + 5 + 13 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 43212135096 and 43212135105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3142023 + ... + 3155745.

It is an arithmetic number, because the mean of its divisors is an integer number (1583584912).

Almost surely, 2^43212135132 is an apocalyptic number.

It is an amenable number.

43212135132 is an abundant number, since it is smaller than the sum of its proper divisors (70805978532).

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

43212135132 is a wasteful number, since it uses less digits than its factorization.

43212135132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17559 (or 17554 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 43212135132 its reverse (23153121234), we get a palindrome (66365256366).

The spelling of 43212135132 in words is "forty-three billion, two hundred twelve million, one hundred thirty-five thousand, one hundred thirty-two".