12823595251 has 2 divisors, whose sum is σ = 12823595252. Its totient is φ = 12823595250.

The previous prime is 12823595249. The next prime is 12823595293. The reversal of 12823595251 is 15259532821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12823595251 - 2¹ = 12823595249 is a prime.

It is a super-2 number, since 2×12823595251² (a number of 21 digits) contains 22 as substring.

Together with 12823595249, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12823595198 and 12823595207.

It is not a weakly prime, because it can be changed into another prime (12823598251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6411797625 + 6411797626.

It is an arithmetic number, because the mean of its divisors is an integer number (6411797626).

Almost surely, 2^12823595251 is an apocalyptic number.

12823595251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12823595251 is an equidigital number, since it uses as much as digits as its factorization.

12823595251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 43.

The spelling of 12823595251 in words is "twelve billion, eight hundred twenty-three million, five hundred ninety-five thousand, two hundred fifty-one".