12002434261 has 2 divisors, whose sum is σ = 12002434262. Its totient is φ = 12002434260.

The previous prime is 12002434217. The next prime is 12002434267. The reversal of 12002434261 is 16243420021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10046052900 + 1956381361 = 100230^2 + 44231^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002434261 - 2²⁵ = 11968879829 is a prime.

It is a super-2 number, since 2×12002434261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002434267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001217130 + 6001217131.

It is an arithmetic number, because the mean of its divisors is an integer number (6001217131).

Almost surely, 2^12002434261 is an apocalyptic number.

It is an amenable number.

12002434261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002434261 is an equidigital number, since it uses as much as digits as its factorization.

12002434261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12002434261 its reverse (16243420021), we get a palindrome (28245854282).

The spelling of 12002434261 in words is "twelve billion, two million, four hundred thirty-four thousand, two hundred sixty-one".