47720107321 has 4 divisors (see below), whose sum is σ = 47828809600. Its totient is φ = 47611405044.

The previous prime is 47720107307. The next prime is 47720107387. The reversal of 47720107321 is 12370102774.

47720107321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47720107321 - 2²⁵ = 47686552889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47720107621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54350481 + ... + 54351358.

It is an arithmetic number, because the mean of its divisors is an integer number (11957202400).

Almost surely, 2^47720107321 is an apocalyptic number.

It is an amenable number.

47720107321 is a deficient number, since it is larger than the sum of its proper divisors (108702279).

47720107321 is a wasteful number, since it uses less digits than its factorization.

47720107321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108702278.

The product of its (nonzero) digits is 16464, while the sum is 34.

The spelling of 47720107321 in words is "forty-seven billion, seven hundred twenty million, one hundred seven thousand, three hundred twenty-one".