2141312321 has 8 divisors (see below), whose sum is σ = 2235225600. Its totient is φ = 2048951520.

The previous prime is 2141312317. The next prime is 2141312357. The reversal of 2141312321 is 1232131412.

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

It is a cyclic number.

It is not a de Polignac number, because 2141312321 - 2² = 2141312317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2141312293 and 2141312302.

It is not an unprimeable number, because it can be changed into a prime (2141312221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385301 + ... + 390818.

It is an arithmetic number, because the mean of its divisors is an integer number (279403200).

Almost surely, 2^2141312321 is an apocalyptic number.

It is an amenable number.

2141312321 is a deficient number, since it is larger than the sum of its proper divisors (93913279).

2141312321 is an equidigital number, since it uses as much as digits as its factorization.

2141312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776239.

The product of its digits is 288, while the sum is 20.

The square root of 2141312321 is about 46274.3159971058. The cubic root of 2141312321 is about 1288.9221052151.

Adding to 2141312321 its reverse (1232131412), we get a palindrome (3373443733).

The spelling of 2141312321 in words is "two billion, one hundred forty-one million, three hundred twelve thousand, three hundred twenty-one".