125144135423 has 2 divisors, whose sum is σ = 125144135424. Its totient is φ = 125144135422.

The previous prime is 125144135401. The next prime is 125144135437. The reversal of 125144135423 is 324531441521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125144135423 - 2⁸ = 125144135167 is a prime.

It is a super-2 number, since 2×125144135423² (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 (125144135443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62572067711 + 62572067712.

It is an arithmetic number, because the mean of its divisors is an integer number (62572067712).

Almost surely, 2^125144135423 is an apocalyptic number.

125144135423 is a deficient number, since it is larger than the sum of its proper divisors (1).

125144135423 is an equidigital number, since it uses as much as digits as its factorization.

125144135423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

Adding to 125144135423 its reverse (324531441521), we get a palindrome (449675576944).

The spelling of 125144135423 in words is "one hundred twenty-five billion, one hundred forty-four million, one hundred thirty-five thousand, four hundred twenty-three".