43012420406231 has 2 divisors, whose sum is σ = 43012420406232. Its totient is φ = 43012420406230.

The previous prime is 43012420406101. The next prime is 43012420406237. The reversal of 43012420406231 is 13260402421034.

43012420406231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43012420406231 - 2³⁸ = 42737542499287 is a prime.

It is a super-2 number, since 2×43012420406231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43012420406237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506210203115 + 21506210203116.

It is an arithmetic number, because the mean of its divisors is an integer number (21506210203116).

Almost surely, 2^{43012420406231} is an apocalyptic number.

43012420406231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43012420406231 is an equidigital number, since it uses as much as digits as its factorization.

43012420406231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 43012420406231 its reverse (13260402421034), we get a palindrome (56272822827265).

The spelling of 43012420406231 in words is "forty-three trillion, twelve billion, four hundred twenty million, four hundred six thousand, two hundred thirty-one".