231312294847 has 2 divisors, whose sum is σ = 231312294848. Its totient is φ = 231312294846.

The previous prime is 231312294823. The next prime is 231312294887. The reversal of 231312294847 is 748492213132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231312294847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231312294797 and 231312294806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231312294817) 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, 115656147423 + 115656147424.

It is an arithmetic number, because the mean of its divisors is an integer number (115656147424).

Almost surely, 2^231312294847 is an apocalyptic number.

231312294847 is a deficient number, since it is larger than the sum of its proper divisors (1).

231312294847 is an equidigital number, since it uses as much as digits as its factorization.

231312294847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 46.

The spelling of 231312294847 in words is "two hundred thirty-one billion, three hundred twelve million, two hundred ninety-four thousand, eight hundred forty-seven".