125432111017 has 4 divisors (see below), whose sum is σ = 125439966036. Its totient is φ = 125424256000.

The previous prime is 125432110967. The next prime is 125432111027. The reversal of 125432111017 is 710111234521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47892696336 + 77539414681 = 218844^2 + 278459^2 .

It is a cyclic number.

It is not a de Polignac number, because 125432111017 - 2¹⁹ = 125431586729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125432111027) 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, 3903508 + ... + 3935509.

It is an arithmetic number, because the mean of its divisors is an integer number (31359991509).

Almost surely, 2^125432111017 is an apocalyptic number.

It is an amenable number.

125432111017 is a deficient number, since it is larger than the sum of its proper divisors (7855019).

125432111017 is an equidigital number, since it uses as much as digits as its factorization.

125432111017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7855018.

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 125432111017 its reverse (710111234521), we get a palindrome (835543345538).

The spelling of 125432111017 in words is "one hundred twenty-five billion, four hundred thirty-two million, one hundred eleven thousand, seventeen".