1251325423 has 2 divisors, whose sum is σ = 1251325424. Its totient is φ = 1251325422.

The previous prime is 1251325417. The next prime is 1251325441. The reversal of 1251325423 is 3245231521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1251325423 is a prime.

It is a super-2 number, since 2×1251325423² = 3131630628492257858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1251325391 and 1251325400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1251325403) 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, 625662711 + 625662712.

It is an arithmetic number, because the mean of its divisors is an integer number (625662712).

Almost surely, 2^1251325423 is an apocalyptic number.

1251325423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251325423 is an equidigital number, since it uses as much as digits as its factorization.

1251325423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 1251325423 is about 35374.0784049564. The cubic root of 1251325423 is about 1077.5979488300.

Adding to 1251325423 its reverse (3245231521), we get a palindrome (4496556944).

The spelling of 1251325423 in words is "one billion, two hundred fifty-one million, three hundred twenty-five thousand, four hundred twenty-three".