11105512439 has 12 divisors (see below), whose sum is σ = 13111476984. Its totient is φ = 9376933104.

The previous prime is 11105512409. The next prime is 11105512459. The reversal of 11105512439 is 93421550111.

It is not a de Polignac number, because 11105512439 - 2⁸ = 11105512183 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 (11105512409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1688084 + ... + 1694649.

It is an arithmetic number, because the mean of its divisors is an integer number (1092623082).

Almost surely, 2^11105512439 is an apocalyptic number.

11105512439 is a deficient number, since it is larger than the sum of its proper divisors (2005964545).

11105512439 is an equidigital number, since it uses as much as digits as its factorization.

11105512439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382814 (or 3382807 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 11105512439 in words is "eleven billion, one hundred five million, five hundred twelve thousand, four hundred thirty-nine".