12427125511 has 8 divisors (see below), whose sum is σ = 13171191840. Its totient is φ = 11684510208.

The previous prime is 12427125493. The next prime is 12427125521. The reversal of 12427125511 is 11552172421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12427125511 - 2⁵ = 12427125479 is a prime.

It is a super-2 number, since 2×12427125511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427125521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345091 + ... + 379396.

It is an arithmetic number, because the mean of its divisors is an integer number (1646398980).

Almost surely, 2^12427125511 is an apocalyptic number.

12427125511 is a deficient number, since it is larger than the sum of its proper divisors (744066329).

12427125511 is a wasteful number, since it uses less digits than its factorization.

12427125511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725513.

The product of its digits is 5600, while the sum is 31.

Adding to 12427125511 its reverse (11552172421), we get a palindrome (23979297932).

The spelling of 12427125511 in words is "twelve billion, four hundred twenty-seven million, one hundred twenty-five thousand, five hundred eleven".