4312231331 has 2 divisors, whose sum is σ = 4312231332. Its totient is φ = 4312231330.

The previous prime is 4312231229. The next prime is 4312231349. The reversal of 4312231331 is 1331322134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4312231331 is a prime.

It is a super-2 number, since 2×4312231331² = 37190678104116063122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4312231297 and 4312231306.

It is not a weakly prime, because it can be changed into another prime (4312231381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156115665 + 2156115666.

It is an arithmetic number, because the mean of its divisors is an integer number (2156115666).

Almost surely, 2^4312231331 is an apocalyptic number.

4312231331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312231331 is an equidigital number, since it uses as much as digits as its factorization.

4312231331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 4312231331 is about 65667.5820401513. The cubic root of 4312231331 is about 1627.6737150887.

Adding to 4312231331 its reverse (1331322134), we get a palindrome (5643553465).

The spelling of 4312231331 in words is "four billion, three hundred twelve million, two hundred thirty-one thousand, three hundred thirty-one".