23231221213201 has 2 divisors, whose sum is σ = 23231221213202. Its totient is φ = 23231221213200.

The previous prime is 23231221213177. The next prime is 23231221213231. The reversal of 23231221213201 is 10231212213232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23129597336976 + 101623876225 = 4809324^2 + 318785^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231221213201 - 2⁷ = 23231221213073 is a prime.

It is not a weakly prime, because it can be changed into another prime (23231221213231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615610606600 + 11615610606601.

It is an arithmetic number, because the mean of its divisors is an integer number (11615610606601).

Almost surely, 2^{23231221213201} is an apocalyptic number.

It is an amenable number.

23231221213201 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231221213201 is an equidigital number, since it uses as much as digits as its factorization.

23231221213201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 23231221213201 its reverse (10231212213232), we get a palindrome (33462433426433).

The spelling of 23231221213201 in words is "twenty-three trillion, two hundred thirty-one billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred one".