43135346231 has 2 divisors, whose sum is σ = 43135346232. Its totient is φ = 43135346230.

The previous prime is 43135346197. The next prime is 43135346249. The reversal of 43135346231 is 13264353134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43135346231 - 2⁶ = 43135346167 is a prime.

It is a super-2 number, since 2×43135346231² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 43135346191 and 43135346200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43135346731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21567673115 + 21567673116.

It is an arithmetic number, because the mean of its divisors is an integer number (21567673116).

Almost surely, 2^43135346231 is an apocalyptic number.

43135346231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43135346231 is an equidigital number, since it uses as much as digits as its factorization.

43135346231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 35.

Adding to 43135346231 its reverse (13264353134), we get a palindrome (56399699365).

The spelling of 43135346231 in words is "forty-three billion, one hundred thirty-five million, three hundred forty-six thousand, two hundred thirty-one".