125101155205 has 16 divisors (see below), whose sum is σ = 161678515824. Its totient is φ = 92377059840.

The previous prime is 125101155191. The next prime is 125101155239. The reversal of 125101155205 is 502551101521.

It can be written as a sum of positive squares in 8 ways, for example, as 4741424164 + 120359731041 = 68858^2 + 346929^2 .

It is not a de Polignac number, because 125101155205 - 2¹¹ = 125101153157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351467 + ... + 1441063.

It is an arithmetic number, because the mean of its divisors is an integer number (10104907239).

Almost surely, 2^125101155205 is an apocalyptic number.

It is an amenable number.

125101155205 is a deficient number, since it is larger than the sum of its proper divisors (36577360619).

125101155205 is a wasteful number, since it uses less digits than its factorization.

125101155205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111096.

The product of its (nonzero) digits is 2500, while the sum is 28.

Adding to 125101155205 its reverse (502551101521), we get a palindrome (627652256726).

The spelling of 125101155205 in words is "one hundred twenty-five billion, one hundred one million, one hundred fifty-five thousand, two hundred five".