231330134207 has 2 divisors, whose sum is σ = 231330134208. Its totient is φ = 231330134206.

The previous prime is 231330134179. The next prime is 231330134323. The reversal of 231330134207 is 702431033132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231330134207 - 2¹⁰ = 231330133183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231330134207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231330133207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665067103 + 115665067104.

It is an arithmetic number, because the mean of its divisors is an integer number (115665067104).

Almost surely, 2^231330134207 is an apocalyptic number.

231330134207 is a deficient number, since it is larger than the sum of its proper divisors (1).

231330134207 is an equidigital number, since it uses as much as digits as its factorization.

231330134207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

Adding to 231330134207 its reverse (702431033132), we get a palindrome (933761167339).

The spelling of 231330134207 in words is "two hundred thirty-one billion, three hundred thirty million, one hundred thirty-four thousand, two hundred seven".