125503540011 has 24 divisors (see below), whose sum is σ = 186132042096. Its totient is φ = 81444242880.

The previous prime is 125503539971. The next prime is 125503540039. The reversal of 125503540011 is 110045305521.

125503540011 is a `hidden beast` number, since 1 + 255 + 0 + 3 + 5 + 400 + 1 + 1 = 666.

It is not a de Polignac number, because 125503540011 - 2¹⁰ = 125503538987 is a prime.

It is a super-2 number, since 2×125503540011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125503540051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440020 + ... + 666801.

It is an arithmetic number, because the mean of its divisors is an integer number (7755501754).

Almost surely, 2^125503540011 is an apocalyptic number.

125503540011 is a deficient number, since it is larger than the sum of its proper divisors (60628502085).

125503540011 is a wasteful number, since it uses less digits than its factorization.

125503540011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107163 (or 1107160 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 125503540011 its reverse (110045305521), we get a palindrome (235548845532).

The spelling of 125503540011 in words is "one hundred twenty-five billion, five hundred three million, five hundred forty thousand, eleven".