12111131626 has 8 divisors (see below), whose sum is σ = 19818215424. Its totient is φ = 5505059820.

The previous prime is 12111131621. The next prime is 12111131633. The reversal of 12111131626 is 62613111121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12111131626.

It is not an unprimeable number, because it can be changed into a prime (12111131621) 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, 275252970 + ... + 275253013.

It is an arithmetic number, because the mean of its divisors is an integer number (2477276928).

Almost surely, 2^12111131626 is an apocalyptic number.

12111131626 is a deficient number, since it is larger than the sum of its proper divisors (7707083798).

12111131626 is a wasteful number, since it uses less digits than its factorization.

12111131626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550505996.

The product of its digits is 432, while the sum is 25.

Adding to 12111131626 its reverse (62613111121), we get a palindrome (74724242747).

The spelling of 12111131626 in words is "twelve billion, one hundred eleven million, one hundred thirty-one thousand, six hundred twenty-six".