125611817133 has 32 divisors (see below), whose sum is σ = 185421146112. Its totient is φ = 74999556800.

The previous prime is 125611817117. The next prime is 125611817161. The reversal of 125611817133 is 331718116521.

It is a cyclic number.

It is not a de Polignac number, because 125611817133 - 2⁴ = 125611817117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125611817091 and 125611817100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125611817173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3197416 + ... + 3236462.

It is an arithmetic number, because the mean of its divisors is an integer number (5794410816).

Almost surely, 2^125611817133 is an apocalyptic number.

It is an amenable number.

125611817133 is a deficient number, since it is larger than the sum of its proper divisors (59809328979).

125611817133 is a wasteful number, since it uses less digits than its factorization.

125611817133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40505.

The product of its digits is 30240, while the sum is 39.

The spelling of 125611817133 in words is "one hundred twenty-five billion, six hundred eleven million, eight hundred seventeen thousand, one hundred thirty-three".