125143563117 has 4 divisors (see below), whose sum is σ = 166858084160. Its totient is φ = 83429042076.

The previous prime is 125143563101. The next prime is 125143563121. The reversal of 125143563117 is 711365341521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 711365341521 = 3 ⋅237121780507.

It is not a de Polignac number, because 125143563117 - 2⁴ = 125143563101 is a prime.

It is a super-2 number, since 2×125143563117² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125143563217) 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, 20857260517 + ... + 20857260522.

It is an arithmetic number, because the mean of its divisors is an integer number (41714521040).

Almost surely, 2^125143563117 is an apocalyptic number.

It is an amenable number.

125143563117 is a deficient number, since it is larger than the sum of its proper divisors (41714521043).

125143563117 is an equidigital number, since it uses as much as digits as its factorization.

125143563117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41714521042.

The product of its digits is 75600, while the sum is 39.

The spelling of 125143563117 in words is "one hundred twenty-five billion, one hundred forty-three million, five hundred sixty-three thousand, one hundred seventeen".