11491014309 has 4 divisors (see below), whose sum is σ = 15321352416. Its totient is φ = 7660676204.

The previous prime is 11491014253. The next prime is 11491014341. The reversal of 11491014309 is 90341019411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11491014309 - 2¹⁶ = 11490948773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11491014309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491014709) 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, 1915169049 + ... + 1915169054.

It is an arithmetic number, because the mean of its divisors is an integer number (3830338104).

Almost surely, 2^11491014309 is an apocalyptic number.

It is an amenable number.

11491014309 is a deficient number, since it is larger than the sum of its proper divisors (3830338107).

11491014309 is an equidigital number, since it uses as much as digits as its factorization.

11491014309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830338106.

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 11491014309 in words is "eleven billion, four hundred ninety-one million, fourteen thousand, three hundred nine".