125131875001 has 4 divisors (see below), whose sum is σ = 143007857152. Its totient is φ = 107255892852.

The previous prime is 125131874999. The next prime is 125131875023. The reversal of 125131875001 is 100578131521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125131875001 - 2¹ = 125131874999 is a prime.

It is a super-2 number, since 2×125131875001² (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 (125131875031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8937991065 + ... + 8937991078.

It is an arithmetic number, because the mean of its divisors is an integer number (35751964288).

Almost surely, 2^125131875001 is an apocalyptic number.

It is an amenable number.

125131875001 is a deficient number, since it is larger than the sum of its proper divisors (17875982151).

125131875001 is an equidigital number, since it uses as much as digits as its factorization.

125131875001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17875982150.

The product of its (nonzero) digits is 8400, while the sum is 34.

The spelling of 125131875001 in words is "one hundred twenty-five billion, one hundred thirty-one million, eight hundred seventy-five thousand, one".