21134151432 has 48 divisors (see below), whose sum is σ = 58092643440. Its totient is φ = 6939570528.

The previous prime is 21134151391. The next prime is 21134151461. The reversal of 21134151432 is 23415143112.

21134151432 is a `hidden beast` number, since 2 + 113 + 4 + 1 + 514 + 32 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 21134151396 and 21134151405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2185698 + ... + 2195345.

It is an arithmetic number, because the mean of its divisors is an integer number (1210263405).

Almost surely, 2^21134151432 is an apocalyptic number.

It is an amenable number.

21134151432 is an abundant number, since it is smaller than the sum of its proper divisors (36958492008).

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

21134151432 is a wasteful number, since it uses less digits than its factorization.

21134151432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381122 (or 4381115 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 21134151432 its reverse (23415143112), we get a palindrome (44549294544).

The spelling of 21134151432 in words is "twenty-one billion, one hundred thirty-four million, one hundred fifty-one thousand, four hundred thirty-two".