4312344521 has 2 divisors, whose sum is σ = 4312344522. Its totient is φ = 4312344520.

The previous prime is 4312344511. The next prime is 4312344529. The reversal of 4312344521 is 1254432134.

4312344521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3701018896 + 611325625 = 60836^2 + 24725^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312344521 - 2¹⁸ = 4312082377 is a prime.

It is not a weakly prime, because it can be changed into another prime (4312344529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156172260 + 2156172261.

It is an arithmetic number, because the mean of its divisors is an integer number (2156172261).

Almost surely, 2^4312344521 is an apocalyptic number.

It is an amenable number.

4312344521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312344521 is an equidigital number, since it uses as much as digits as its factorization.

4312344521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 4312344521 is about 65668.4438752739. The cubic root of 4312344521 is about 1627.6879563451.

Adding to 4312344521 its reverse (1254432134), we get a palindrome (5566776655).

The spelling of 4312344521 in words is "four billion, three hundred twelve million, three hundred forty-four thousand, five hundred twenty-one".