125123132131 has 8 divisors (see below), whose sum is σ = 132486656400. Its totient is φ = 117759979008.

The previous prime is 125123132039. The next prime is 125123132149. The reversal of 125123132131 is 131231321521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125123132131 - 2²⁵ = 125089577699 is a prime.

It is a super-2 number, since 2×125123132131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125123132096 and 125123132105.

It is not an unprimeable number, because it can be changed into a prime (125123132731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912720 + ... + 1040818.

It is an arithmetic number, because the mean of its divisors is an integer number (16560832050).

Almost surely, 2^125123132131 is an apocalyptic number.

125123132131 is a deficient number, since it is larger than the sum of its proper divisors (7363524269).

125123132131 is a wasteful number, since it uses less digits than its factorization.

125123132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185573.

The product of its digits is 1080, while the sum is 25.

Adding to 125123132131 its reverse (131231321521), we get a palindrome (256354453652).

The spelling of 125123132131 in words is "one hundred twenty-five billion, one hundred twenty-three million, one hundred thirty-two thousand, one hundred thirty-one".