2321320420 has 24 divisors (see below), whose sum is σ = 5161524984. Its totient is φ = 873908736.

The previous prime is 2321320303. The next prime is 2321320427. The reversal of 2321320420 is 240231232.

It can be written as a sum of positive squares in 4 ways, for example, as 492218596 + 1829101824 = 22186^2 + 42768^2 .

It is not an unprimeable number, because it can be changed into a prime (2321320427) 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, 3413367 + ... + 3414046.

It is an arithmetic number, because the mean of its divisors is an integer number (215063541).

Almost surely, 2^2321320420 is an apocalyptic number.

2321320420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321320420 is an abundant number, since it is smaller than the sum of its proper divisors (2840204564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2321320420 is a wasteful number, since it uses less digits than its factorization.

2321320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827439 (or 6827437 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2321320420 is about 48180.0832294839. The cubic root of 2321320420 is about 1324.0722913951.

Adding to 2321320420 its reverse (240231232), we get a palindrome (2561551652).

The spelling of 2321320420 in words is "two billion, three hundred twenty-one million, three hundred twenty thousand, four hundred twenty".