2401312321 has 16 divisors (see below), whose sum is σ = 2599120960. Its totient is φ = 2210794560.

The previous prime is 2401312289. The next prime is 2401312349. The reversal of 2401312321 is 1232131042.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2401312321 - 2⁵ = 2401312289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (2401312351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821755 + ... + 824671.

It is an arithmetic number, because the mean of its divisors is an integer number (162445060).

Almost surely, 2^2401312321 is an apocalyptic number.

It is an amenable number.

2401312321 is a deficient number, since it is larger than the sum of its proper divisors (197808639).

2401312321 is a wasteful number, since it uses less digits than its factorization.

2401312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2401312321 is about 49003.1868453471. The cubic root of 2401312321 is about 1339.1098865098.

Adding to 2401312321 its reverse (1232131042), we get a palindrome (3633443363).

The spelling of 2401312321 in words is "two billion, four hundred one million, three hundred twelve thousand, three hundred twenty-one".