125123132057 has 16 divisors (see below), whose sum is σ = 164208076800. Its totient is φ = 92367041040.

The previous prime is 125123132039. The next prime is 125123132149. The reversal of 125123132057 is 750231321521.

It is a cyclic number.

It is not a de Polignac number, because 125123132057 - 2⁶ = 125123131993 is a prime.

It is a super-2 number, since 2×125123132057² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125123132557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42761057 + ... + 42763982.

It is an arithmetic number, because the mean of its divisors is an integer number (10263004800).

Almost surely, 2^125123132057 is an apocalyptic number.

It is an amenable number.

125123132057 is a deficient number, since it is larger than the sum of its proper divisors (39084944743).

125123132057 is a wasteful number, since it uses less digits than its factorization.

125123132057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85525076.

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 125123132057 its reverse (750231321521), we get a palindrome (875354453578).

The spelling of 125123132057 in words is "one hundred twenty-five billion, one hundred twenty-three million, one hundred thirty-two thousand, fifty-seven".