12656323151 has 2 divisors, whose sum is σ = 12656323152. Its totient is φ = 12656323150.

The previous prime is 12656323129. The next prime is 12656323157. The reversal of 12656323151 is 15132365621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12656323151 - 2¹⁸ = 12656061007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12656323157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6328161575 + 6328161576.

It is an arithmetic number, because the mean of its divisors is an integer number (6328161576).

Almost surely, 2^12656323151 is an apocalyptic number.

12656323151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12656323151 is an equidigital number, since it uses as much as digits as its factorization.

12656323151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

Adding to 12656323151 its reverse (15132365621), we get a palindrome (27788688772).

The spelling of 12656323151 in words is "twelve billion, six hundred fifty-six million, three hundred twenty-three thousand, one hundred fifty-one".