12425134511 has 4 divisors (see below), whose sum is σ = 12465087024. Its totient is φ = 12385182000.

The previous prime is 12425134507. The next prime is 12425134529. The reversal of 12425134511 is 11543152421.

It is a happy number.

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 12425134511 - 2² = 12425134507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425134541) 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, 19975790 + ... + 19976411.

It is an arithmetic number, because the mean of its divisors is an integer number (3116271756).

Almost surely, 2^12425134511 is an apocalyptic number.

12425134511 is a deficient number, since it is larger than the sum of its proper divisors (39952513).

12425134511 is an equidigital number, since it uses as much as digits as its factorization.

12425134511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39952512.

The product of its digits is 4800, while the sum is 29.

Adding to 12425134511 its reverse (11543152421), we get a palindrome (23968286932).

The spelling of 12425134511 in words is "twelve billion, four hundred twenty-five million, one hundred thirty-four thousand, five hundred eleven".