2321381717421 has 8 divisors (see below), whose sum is σ = 3333266055840. Its totient is φ = 1428542595312.

The previous prime is 2321381717411. The next prime is 2321381717423. The reversal of 2321381717421 is 1247171831232.

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

It is not a de Polignac number, because 2321381717421 - 2⁹ = 2321381716909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321381717423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29761304031 + ... + 29761304108.

It is an arithmetic number, because the mean of its divisors is an integer number (416658256980).

Almost surely, 2^{2321381717421} is an apocalyptic number.

It is an amenable number.

2321381717421 is a deficient number, since it is larger than the sum of its proper divisors (1011884338419).

2321381717421 is a wasteful number, since it uses less digits than its factorization.

2321381717421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59522608155.

The product of its digits is 112896, while the sum is 42.

The spelling of 2321381717421 in words is "two trillion, three hundred twenty-one billion, three hundred eighty-one million, seven hundred seventeen thousand, four hundred twenty-one".