231571196398043 has 2 divisors, whose sum is σ = 231571196398044. Its totient is φ = 231571196398042.

The previous prime is 231571196398039. The next prime is 231571196398117. The reversal of 231571196398043 is 340893691175132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231571196398043 - 2² = 231571196398039 is a prime.

It is not a weakly prime, because it can be changed into another prime (231571196398643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115785598199021 + 115785598199022.

It is an arithmetic number, because the mean of its divisors is an integer number (115785598199022).

It is a 1-persistent number, because it is pandigital, but 2⋅231571196398043 = 463142392796086 is not.

Almost surely, 2^{231571196398043} is an apocalyptic number.

231571196398043 is a deficient number, since it is larger than the sum of its proper divisors (1).

231571196398043 is an equidigital number, since it uses as much as digits as its factorization.

231571196398043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 231571196398043 in words is "two hundred thirty-one trillion, five hundred seventy-one billion, one hundred ninety-six million, three hundred ninety-eight thousand, forty-three".