11109125499 has 8 divisors (see below), whose sum is σ = 14964870480. Its totient is φ = 7329732096.

The previous prime is 11109125431. The next prime is 11109125501. The reversal of 11109125499 is 99452190111.

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

It is not a de Polignac number, because 11109125499 - 2⁹ = 11109124987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11109125499.

It is not an unprimeable number, because it can be changed into a prime (11109125299) 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, 19087554 + ... + 19088135.

It is an arithmetic number, because the mean of its divisors is an integer number (1870608810).

Almost surely, 2^11109125499 is an apocalyptic number.

11109125499 is a deficient number, since it is larger than the sum of its proper divisors (3855744981).

11109125499 is an equidigital number, since it uses as much as digits as its factorization.

11109125499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38175789.

The product of its (nonzero) digits is 29160, while the sum is 42.

The spelling of 11109125499 in words is "eleven billion, one hundred nine million, one hundred twenty-five thousand, four hundred ninety-nine".