12125100011 has 4 divisors (see below), whose sum is σ = 12125821800. Its totient is φ = 12124378224.

The previous prime is 12125099999. The next prime is 12125100017. The reversal of 12125100011 is 11000152121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12125100011 - 2¹⁰ = 12125098987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12125100017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335081 + ... + 369498.

It is an arithmetic number, because the mean of its divisors is an integer number (3031455450).

Almost surely, 2^12125100011 is an apocalyptic number.

12125100011 is a deficient number, since it is larger than the sum of its proper divisors (721789).

12125100011 is an equidigital number, since it uses as much as digits as its factorization.

12125100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721788.

The product of its (nonzero) digits is 20, while the sum is 14.

Adding to 12125100011 its reverse (11000152121), we get a palindrome (23125252132).

The spelling of 12125100011 in words is "twelve billion, one hundred twenty-five million, one hundred thousand, eleven".