12451253231 has 2 divisors, whose sum is σ = 12451253232. Its totient is φ = 12451253230.

The previous prime is 12451253197. The next prime is 12451253239. The reversal of 12451253231 is 13235215421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12451253231 - 2⁶ = 12451253167 is a prime.

It is a super-2 number, since 2×12451253231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12451253194 and 12451253203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12451253239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225626615 + 6225626616.

It is an arithmetic number, because the mean of its divisors is an integer number (6225626616).

Almost surely, 2^12451253231 is an apocalyptic number.

12451253231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12451253231 is an equidigital number, since it uses as much as digits as its factorization.

12451253231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

Adding to 12451253231 its reverse (13235215421), we get a palindrome (25686468652).

The spelling of 12451253231 in words is "twelve billion, four hundred fifty-one million, two hundred fifty-three thousand, two hundred thirty-one".