12124125145 has 16 divisors (see below), whose sum is σ = 15954693120. Its totient is φ = 8771372800.

The previous prime is 12124125121. The next prime is 12124125227. The reversal of 12124125145 is 54152142121.

It is not a de Polignac number, because 12124125145 - 2²¹ = 12122027993 is a prime.

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, 566560 + ... + 587569.

It is an arithmetic number, because the mean of its divisors is an integer number (997168320).

Almost surely, 2^12124125145 is an apocalyptic number.

It is an amenable number.

12124125145 is a deficient number, since it is larger than the sum of its proper divisors (3830567975).

12124125145 is a wasteful number, since it uses less digits than its factorization.

12124125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154336.

The product of its digits is 3200, while the sum is 28.

Adding to 12124125145 its reverse (54152142121), we get a palindrome (66276267266).

The spelling of 12124125145 in words is "twelve billion, one hundred twenty-four million, one hundred twenty-five thousand, one hundred forty-five".