12123211333 has 2 divisors, whose sum is σ = 12123211334. Its totient is φ = 12123211332.

The previous prime is 12123211327. The next prime is 12123211337. The reversal of 12123211333 is 33311232121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10453426564 + 1669784769 = 102242^2 + 40863^2 .

It is a cyclic number.

It is not a de Polignac number, because 12123211333 - 2¹⁷ = 12123080261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123211337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061605666 + 6061605667.

It is an arithmetic number, because the mean of its divisors is an integer number (6061605667).

Almost surely, 2^12123211333 is an apocalyptic number.

It is an amenable number.

12123211333 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123211333 is an equidigital number, since it uses as much as digits as its factorization.

12123211333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

Adding to 12123211333 its reverse (33311232121), we get a palindrome (45434443454).

The spelling of 12123211333 in words is "twelve billion, one hundred twenty-three million, two hundred eleven thousand, three hundred thirty-three".