23531312201 has 2 divisors, whose sum is σ = 23531312202. Its totient is φ = 23531312200.

The previous prime is 23531312177. The next prime is 23531312209. The reversal of 23531312201 is 10221313532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18818352400 + 4712959801 = 137180^2 + 68651^2 .

It is a cyclic number.

It is not a de Polignac number, because 23531312201 - 2⁶ = 23531312137 is a prime.

It is not a weakly prime, because it can be changed into another prime (23531312209) 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, 11765656100 + 11765656101.

It is an arithmetic number, because the mean of its divisors is an integer number (11765656101).

Almost surely, 2^23531312201 is an apocalyptic number.

It is an amenable number.

23531312201 is a deficient number, since it is larger than the sum of its proper divisors (1).

23531312201 is an equidigital number, since it uses as much as digits as its factorization.

23531312201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 23531312201 its reverse (10221313532), we get a palindrome (33752625733).

The spelling of 23531312201 in words is "twenty-three billion, five hundred thirty-one million, three hundred twelve thousand, two hundred one".