125111201105 has 16 divisors (see below), whose sum is σ = 164023907904. Its totient is φ = 90855535680.

The previous prime is 125111201101. The next prime is 125111201113. The reversal of 125111201105 is 501102111521.

It is not a de Polignac number, because 125111201105 - 2² = 125111201101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125111201101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642787 + ... + 1717256.

It is an arithmetic number, because the mean of its divisors is an integer number (10251494244).

Almost surely, 2^125111201105 is an apocalyptic number.

It is an amenable number.

125111201105 is a deficient number, since it is larger than the sum of its proper divisors (38912706799).

125111201105 is a wasteful number, since it uses less digits than its factorization.

125111201105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360736.

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 125111201105 its reverse (501102111521), we get a palindrome (626213312626).

The spelling of 125111201105 in words is "one hundred twenty-five billion, one hundred eleven million, two hundred one thousand, one hundred five".