125105204455011 has 24 divisors (see below), whose sum is σ = 197138074446144. Its totient is φ = 75820335741360.

The previous prime is 125105204454973. The next prime is 125105204455037. The reversal of 125105204455011 is 110554402501521.

125105204455011 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 0 + 52 + 0 + 44 + 550 + 11 = 666.

It is not a de Polignac number, because 125105204455011 - 2²⁵ = 125105170900579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125105204455061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 759141 + ... + 15836246.

It is an arithmetic number, because the mean of its divisors is an integer number (8214086435256).

Almost surely, 2^{125105204455011} is an apocalyptic number.

125105204455011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125105204455011 is a deficient number, since it is larger than the sum of its proper divisors (72032869991133).

125105204455011 is a wasteful number, since it uses less digits than its factorization.

125105204455011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16671551 (or 16671548 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

Adding to 125105204455011 its reverse (110554402501521), we get a palindrome (235659606956532).

The spelling of 125105204455011 in words is "one hundred twenty-five trillion, one hundred five billion, two hundred four million, four hundred fifty-five thousand, eleven".