12423771133 has 2 divisors, whose sum is σ = 12423771134. Its totient is φ = 12423771132.

The previous prime is 12423771109. The next prime is 12423771161. The reversal of 12423771133 is 33117732421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6320568004 + 6103203129 = 79502^2 + 78123^2 .

It is an emirp because it is prime and its reverse (33117732421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423771133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12423774133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211885566 + 6211885567.

It is an arithmetic number, because the mean of its divisors is an integer number (6211885567).

Almost surely, 2^12423771133 is an apocalyptic number.

It is an amenable number.

12423771133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423771133 is an equidigital number, since it uses as much as digits as its factorization.

12423771133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The spelling of 12423771133 in words is "twelve billion, four hundred twenty-three million, seven hundred seventy-one thousand, one hundred thirty-three".