11339158991 has 4 divisors (see below), whose sum is σ = 11343164352. Its totient is φ = 11335153632.

The previous prime is 11339158927. The next prime is 11339159021. The reversal of 11339158991 is 19985193311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19985193311 = 15233 ⋅1311967.

It is a cyclic number.

It is not a de Polignac number, because 11339158991 - 2⁶ = 11339158927 is a prime.

It is a super-2 number, since 2×11339158991² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11339158921) 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, 1998431 + ... + 2004096.

It is an arithmetic number, because the mean of its divisors is an integer number (2835791088).

Almost surely, 2^11339158991 is an apocalyptic number.

11339158991 is a deficient number, since it is larger than the sum of its proper divisors (4005361).

11339158991 is an equidigital number, since it uses as much as digits as its factorization.

11339158991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005360.

The product of its digits is 262440, while the sum is 50.

The spelling of 11339158991 in words is "eleven billion, three hundred thirty-nine million, one hundred fifty-eight thousand, nine hundred ninety-one".