231403844311 has 2 divisors, whose sum is σ = 231403844312. Its totient is φ = 231403844310.

The previous prime is 231403844233. The next prime is 231403844333. The reversal of 231403844311 is 113448304132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231403844311 - 2⁹ = 231403843799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231403844351) 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, 115701922155 + 115701922156.

It is an arithmetic number, because the mean of its divisors is an integer number (115701922156).

Almost surely, 2^231403844311 is an apocalyptic number.

231403844311 is a deficient number, since it is larger than the sum of its proper divisors (1).

231403844311 is an equidigital number, since it uses as much as digits as its factorization.

231403844311 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 34.

The spelling of 231403844311 in words is "two hundred thirty-one billion, four hundred three million, eight hundred forty-four thousand, three hundred eleven".