12122321153 has 2 divisors, whose sum is σ = 12122321154. Its totient is φ = 12122321152.

The previous prime is 12122321041. The next prime is 12122321161. The reversal of 12122321153 is 35112322121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7411832464 + 4710488689 = 86092^2 + 68633^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122321153 - 2¹⁰ = 12122320129 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122321353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061160576 + 6061160577.

It is an arithmetic number, because the mean of its divisors is an integer number (6061160577).

Almost surely, 2^12122321153 is an apocalyptic number.

It is an amenable number.

12122321153 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122321153 is an equidigital number, since it uses as much as digits as its factorization.

12122321153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

Adding to 12122321153 its reverse (35112322121), we get a palindrome (47234643274).

The spelling of 12122321153 in words is "twelve billion, one hundred twenty-two million, three hundred twenty-one thousand, one hundred fifty-three".