11399097309 has 16 divisors (see below), whose sum is σ = 15921926400. Its totient is φ = 7244467776.

The previous prime is 11399097293. The next prime is 11399097313. The reversal of 11399097309 is 90379099311.

It is not a de Polignac number, because 11399097309 - 2⁴ = 11399097293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11399097379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822394 + ... + 836139.

It is an arithmetic number, because the mean of its divisors is an integer number (995120400).

Almost surely, 2^11399097309 is an apocalyptic number.

It is an amenable number.

11399097309 is a deficient number, since it is larger than the sum of its proper divisors (4522829091).

11399097309 is a wasteful number, since it uses less digits than its factorization.

11399097309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658644.

The product of its (nonzero) digits is 413343, while the sum is 51.

The spelling of 11399097309 in words is "eleven billion, three hundred ninety-nine million, ninety-seven thousand, three hundred nine".