21073430617132 has 6 divisors (see below), whose sum is σ = 36878503579988. Its totient is φ = 10536715308564.

The previous prime is 21073430617103. The next prime is 21073430617157. The reversal of 21073430617132 is 23171603437012.

It is a happy 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 as a sum of consecutive naturals, namely, 2634178827138 + ... + 2634178827145.

Almost surely, 2^{21073430617132} is an apocalyptic number.

It is an amenable number.

21073430617132 is a deficient number, since it is larger than the sum of its proper divisors (15805072962856).

21073430617132 is a wasteful number, since it uses less digits than its factorization.

21073430617132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268357654287 (or 5268357654285 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 21073430617132 in words is "twenty-one trillion, seventy-three billion, four hundred thirty million, six hundred seventeen thousand, one hundred thirty-two".