23112221212133 has 2 divisors, whose sum is σ = 23112221212134. Its totient is φ = 23112221212132.

The previous prime is 23112221212127. The next prime is 23112221212147. The reversal of 23112221212133 is 33121212221132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18265169845729 + 4847051366404 = 4273777^2 + 2201602^2 .

It is a cyclic number.

It is not a de Polignac number, because 23112221212133 - 2²⁸ = 23111952776677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23112221212183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556110606066 + 11556110606067.

It is an arithmetic number, because the mean of its divisors is an integer number (11556110606067).

Almost surely, 2^{23112221212133} is an apocalyptic number.

It is an amenable number.

23112221212133 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112221212133 is an equidigital number, since it uses as much as digits as its factorization.

23112221212133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

Adding to 23112221212133 its reverse (33121212221132), we get a palindrome (56233433433265).

The spelling of 23112221212133 in words is "twenty-three trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, one hundred thirty-three".