2312420321 has 2 divisors, whose sum is σ = 2312420322. Its totient is φ = 2312420320.

The previous prime is 2312420311. The next prime is 2312420347. The reversal of 2312420321 is 1230242132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2128438225 + 183982096 = 46135^2 + 13564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312420321 - 2¹⁰ = 2312419297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2312420293 and 2312420302.

It is not a weakly prime, because it can be changed into another prime (2312420311) 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 as a sum of consecutive naturals, namely, 1156210160 + 1156210161.

It is an arithmetic number, because the mean of its divisors is an integer number (1156210161).

Almost surely, 2^2312420321 is an apocalyptic number.

It is an amenable number.

2312420321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312420321 is an equidigital number, since it uses as much as digits as its factorization.

2312420321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2312420321 is about 48087.6316842491. The cubic root of 2312420321 is about 1322.3779299687.

Adding to 2312420321 its reverse (1230242132), we get a palindrome (3542662453).

The spelling of 2312420321 in words is "two billion, three hundred twelve million, four hundred twenty thousand, three hundred twenty-one".