125543452423 has 2 divisors, whose sum is σ = 125543452424. Its totient is φ = 125543452422.

The previous prime is 125543452409. The next prime is 125543452453. The reversal of 125543452423 is 324254345521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125543452423 is a prime.

It is a super-2 number, since 2×125543452423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125543452403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62771726211 + 62771726212.

It is an arithmetic number, because the mean of its divisors is an integer number (62771726212).

Almost surely, 2^125543452423 is an apocalyptic number.

125543452423 is a deficient number, since it is larger than the sum of its proper divisors (1).

125543452423 is an equidigital number, since it uses as much as digits as its factorization.

125543452423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 40.

Adding to 125543452423 its reverse (324254345521), we get a palindrome (449797797944).

The spelling of 125543452423 in words is "one hundred twenty-five billion, five hundred forty-three million, four hundred fifty-two thousand, four hundred twenty-three".