231430335211 has 2 divisors, whose sum is σ = 231430335212. Its totient is φ = 231430335210.

The previous prime is 231430335197. The next prime is 231430335251. The reversal of 231430335211 is 112533034132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231430335211 - 2⁷ = 231430335083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231430335211.

It is not a weakly prime, because it can be changed into another prime (231430335251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115715167605 + 115715167606.

It is an arithmetic number, because the mean of its divisors is an integer number (115715167606).

Almost surely, 2^231430335211 is an apocalyptic number.

231430335211 is a deficient number, since it is larger than the sum of its proper divisors (1).

231430335211 is an equidigital number, since it uses as much as digits as its factorization.

231430335211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 231430335211 its reverse (112533034132), we get a palindrome (343963369343).

The spelling of 231430335211 in words is "two hundred thirty-one billion, four hundred thirty million, three hundred thirty-five thousand, two hundred eleven".