12235671671 has 2 divisors, whose sum is σ = 12235671672. Its totient is φ = 12235671670.

The previous prime is 12235671667. The next prime is 12235671703. The reversal of 12235671671 is 17617653221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12235671671 - 2² = 12235671667 is a prime.

It is a super-2 number, since 2×12235671671² (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 (12235071671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6117835835 + 6117835836.

It is an arithmetic number, because the mean of its divisors is an integer number (6117835836).

Almost surely, 2^12235671671 is an apocalyptic number.

12235671671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12235671671 is an equidigital number, since it uses as much as digits as its factorization.

12235671671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The spelling of 12235671671 in words is "twelve billion, two hundred thirty-five million, six hundred seventy-one thousand, six hundred seventy-one".