2321245821 has 8 divisors (see below), whose sum is σ = 3096198400. Its totient is φ = 1546895232.

The previous prime is 2321245799. The next prime is 2321245831. The reversal of 2321245821 is 1285421232.

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

It is not a de Polignac number, because 2321245821 - 2¹¹ = 2321243773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321245831) 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, 141421 + ... + 156978.

It is an arithmetic number, because the mean of its divisors is an integer number (387024800).

Almost surely, 2^2321245821 is an apocalyptic number.

It is an amenable number.

2321245821 is a deficient number, since it is larger than the sum of its proper divisors (774952579).

2321245821 is a wasteful number, since it uses less digits than its factorization.

2321245821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300995.

The product of its digits is 7680, while the sum is 30.

The square root of 2321245821 is about 48179.3090548214. The cubic root of 2321245821 is about 1324.0581075817.

The spelling of 2321245821 in words is "two billion, three hundred twenty-one million, two hundred forty-five thousand, eight hundred twenty-one".