11131423615 has 32 divisors (see below), whose sum is σ = 14727295296. Its totient is φ = 8026905600.

The previous prime is 11131423613. The next prime is 11131423621. The reversal of 11131423615 is 51632413111.

It is not a de Polignac number, because 11131423615 - 2¹ = 11131423613 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 (11131423613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 467632 + ... + 490858.

It is an arithmetic number, because the mean of its divisors is an integer number (460227978).

Almost surely, 2^11131423615 is an apocalyptic number.

11131423615 is a deficient number, since it is larger than the sum of its proper divisors (3595871681).

11131423615 is a wasteful number, since it uses less digits than its factorization.

11131423615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23419.

The product of its digits is 2160, while the sum is 28.

Adding to 11131423615 its reverse (51632413111), we get a palindrome (62763836726).

The spelling of 11131423615 in words is "eleven billion, one hundred thirty-one million, four hundred twenty-three thousand, six hundred fifteen".