4312124321 has 2 divisors, whose sum is σ = 4312124322. Its totient is φ = 4312124320.

The previous prime is 4312124317. The next prime is 4312124339. The reversal of 4312124321 is 1234212134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4191915025 + 120209296 = 64745^2 + 10964^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312124321 - 2² = 4312124317 is a prime.

It is a super-2 number, since 2×4312124321² = 37188832319519422082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4312154321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156062160 + 2156062161.

It is an arithmetic number, because the mean of its divisors is an integer number (2156062161).

Almost surely, 2^4312124321 is an apocalyptic number.

It is an amenable number.

4312124321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312124321 is an equidigital number, since it uses as much as digits as its factorization.

4312124321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 4312124321 is about 65666.7672495000. The cubic root of 4312124321 is about 1627.6602511539.

Adding to 4312124321 its reverse (1234212134), we get a palindrome (5546336455).

The spelling of 4312124321 in words is "four billion, three hundred twelve million, one hundred twenty-four thousand, three hundred twenty-one".