231101201 has 2 divisors, whose sum is σ = 231101202. Its totient is φ = 231101200.

The previous prime is 231101173. The next prime is 231101207. The reversal of 231101201 is 102101132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209236225 + 21864976 = 14465^2 + 4676^2 .

It is a cyclic number.

It is not a de Polignac number, because 231101201 - 2¹⁴ = 231084817 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (231101207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115550600 + 115550601.

It is an arithmetic number, because the mean of its divisors is an integer number (115550601).

Almost surely, 2^231101201 is an apocalyptic number.

It is an amenable number.

231101201 is a deficient number, since it is larger than the sum of its proper divisors (1).

231101201 is an equidigital number, since it uses as much as digits as its factorization.

231101201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 231101201 is about 15202.0130574868. The cubic root of 231101201 is about 613.6688338181.

Adding to 231101201 its reverse (102101132), we get a palindrome (333202333).

The spelling of 231101201 in words is "two hundred thirty-one million, one hundred one thousand, two hundred one".