231342231287 has 2 divisors, whose sum is σ = 231342231288. Its totient is φ = 231342231286.

The previous prime is 231342231277. The next prime is 231342231413. The reversal of 231342231287 is 782132243132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231342231287 - 2¹⁰ = 231342230263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231342231287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231342231247) 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, 115671115643 + 115671115644.

It is an arithmetic number, because the mean of its divisors is an integer number (115671115644).

Almost surely, 2^231342231287 is an apocalyptic number.

231342231287 is a deficient number, since it is larger than the sum of its proper divisors (1).

231342231287 is an equidigital number, since it uses as much as digits as its factorization.

231342231287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The spelling of 231342231287 in words is "two hundred thirty-one billion, three hundred forty-two million, two hundred thirty-one thousand, two hundred eighty-seven".