12300017721 has 8 divisors (see below), whose sum is σ = 16508633664. Its totient is φ = 8145706800.

The previous prime is 12300017677. The next prime is 12300017731. The reversal of 12300017721 is 12771000321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12300017721 - 2⁶ = 12300017657 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12300017691 and 12300017700.

It is not an unprimeable number, because it can be changed into a prime (12300017731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13575726 + ... + 13576631.

It is an arithmetic number, because the mean of its divisors is an integer number (2063579208).

Almost surely, 2^12300017721 is an apocalyptic number.

It is an amenable number.

12300017721 is a deficient number, since it is larger than the sum of its proper divisors (4208615943).

12300017721 is a wasteful number, since it uses less digits than its factorization.

12300017721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27152511.

The product of its (nonzero) digits is 588, while the sum is 24.

The spelling of 12300017721 in words is "twelve billion, three hundred million, seventeen thousand, seven hundred twenty-one".