231032389543 has 2 divisors, whose sum is σ = 231032389544. Its totient is φ = 231032389542.

The previous prime is 231032389513. The next prime is 231032389561. The reversal of 231032389543 is 345983230132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231032389543 - 2¹³ = 231032381351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231032389543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231032389513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115516194771 + 115516194772.

It is an arithmetic number, because the mean of its divisors is an integer number (115516194772).

Almost surely, 2^231032389543 is an apocalyptic number.

231032389543 is a deficient number, since it is larger than the sum of its proper divisors (1).

231032389543 is an equidigital number, since it uses as much as digits as its factorization.

231032389543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 231032389543 in words is "two hundred thirty-one billion, thirty-two million, three hundred eighty-nine thousand, five hundred forty-three".