231021112207 has 2 divisors, whose sum is σ = 231021112208. Its totient is φ = 231021112206.

The previous prime is 231021112181. The next prime is 231021112241. The reversal of 231021112207 is 702211120132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231021112207 - 2⁷ = 231021112079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231021112507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115510556103 + 115510556104.

It is an arithmetic number, because the mean of its divisors is an integer number (115510556104).

Almost surely, 2^231021112207 is an apocalyptic number.

231021112207 is a deficient number, since it is larger than the sum of its proper divisors (1).

231021112207 is an equidigital number, since it uses as much as digits as its factorization.

231021112207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 231021112207 its reverse (702211120132), we get a palindrome (933232232339).

The spelling of 231021112207 in words is "two hundred thirty-one billion, twenty-one million, one hundred twelve thousand, two hundred seven".