4343421331 has 2 divisors, whose sum is σ = 4343421332. Its totient is φ = 4343421330.

The previous prime is 4343421319. The next prime is 4343421347. The reversal of 4343421331 is 1331243434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4343421331 - 2²¹ = 4341324179 is a prime.

It is a super-2 number, since 2×4343421331² = 37730617717171623122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4343421331.

It is not a weakly prime, because it can be changed into another prime (4343421311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2171710665 + 2171710666.

It is an arithmetic number, because the mean of its divisors is an integer number (2171710666).

Almost surely, 2^4343421331 is an apocalyptic number.

4343421331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4343421331 is an equidigital number, since it uses as much as digits as its factorization.

4343421331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 28.

The square root of 4343421331 is about 65904.6381599960. The cubic root of 4343421331 is about 1631.5885664827.

Adding to 4343421331 its reverse (1331243434), we get a palindrome (5674664765).

The spelling of 4343421331 in words is "four billion, three hundred forty-three million, four hundred twenty-one thousand, three hundred thirty-one".