231126001 has 2 divisors, whose sum is σ = 231126002. Its totient is φ = 231126000.

The previous prime is 231125977. The next prime is 231126017. The reversal of 231126001 is 100621132.

It is an a-pointer prime, because the next prime (231126017) can be obtained adding 231126001 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216678400 + 14447601 = 14720^2 + 3801^2 .

It is a cyclic number.

It is not a de Polignac number, because 231126001 - 2¹¹ = 231123953 is a prime.

It is not a weakly prime, because it can be changed into another prime (231126031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115563000 + 115563001.

It is an arithmetic number, because the mean of its divisors is an integer number (115563001).

Almost surely, 2^231126001 is an apocalyptic number.

It is an amenable number.

231126001 is a deficient number, since it is larger than the sum of its proper divisors (1).

231126001 is an equidigital number, since it uses as much as digits as its factorization.

231126001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 231126001 is about 15202.8287170513. The cubic root of 231126001 is about 613.6907844363.

Adding to 231126001 its reverse (100621132), we get a palindrome (331747133).

The spelling of 231126001 in words is "two hundred thirty-one million, one hundred twenty-six thousand, one".