23320112031221 has 2 divisors, whose sum is σ = 23320112031222. Its totient is φ = 23320112031220.

The previous prime is 23320112031163. The next prime is 23320112031287. The reversal of 23320112031221 is 12213021102332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17308720140625 + 6011391890596 = 4160375^2 + 2451814^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320112031221 - 2¹⁰ = 23320112030197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320112037221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660056015610 + 11660056015611.

It is an arithmetic number, because the mean of its divisors is an integer number (11660056015611).

Almost surely, 2^{23320112031221} is an apocalyptic number.

It is an amenable number.

23320112031221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320112031221 is an equidigital number, since it uses as much as digits as its factorization.

23320112031221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23320112031221 its reverse (12213021102332), we get a palindrome (35533133133553).

The spelling of 23320112031221 in words is "twenty-three trillion, three hundred twenty billion, one hundred twelve million, thirty-one thousand, two hundred twenty-one".