231313223201 has 2 divisors, whose sum is σ = 231313223202. Its totient is φ = 231313223200.

The previous prime is 231313223153. The next prime is 231313223221. The reversal of 231313223201 is 102322313132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230975398801 + 337824400 = 480599^2 + 18380^2 .

It is a cyclic number.

It is not a de Polignac number, because 231313223201 - 2⁶ = 231313223137 is a prime.

It is not a weakly prime, because it can be changed into another prime (231313223221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115656611600 + 115656611601.

It is an arithmetic number, because the mean of its divisors is an integer number (115656611601).

Almost surely, 2^231313223201 is an apocalyptic number.

It is an amenable number.

231313223201 is a deficient number, since it is larger than the sum of its proper divisors (1).

231313223201 is an equidigital number, since it uses as much as digits as its factorization.

231313223201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231313223201 its reverse (102322313132), we get a palindrome (333635536333).

The spelling of 231313223201 in words is "two hundred thirty-one billion, three hundred thirteen million, two hundred twenty-three thousand, two hundred one".