11000191000 has 64 divisors (see below), whose sum is σ = 26162566560. Its totient is φ = 4327920000.

The previous prime is 11000190991. The next prime is 11000191009. The reversal of 11000191000 is 19100011.

It is an interprime number because it is at equal distance from previous prime (11000190991) and next prime (11000191009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000191009) 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, 29166 + ... + 151165.

Almost surely, 2^11000191000 is an apocalyptic number.

11000191000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000191000 is an abundant number, since it is smaller than the sum of its proper divisors (15162375560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11000191000 is a wasteful number, since it uses less digits than its factorization.

11000191000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180413 (or 180399 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11000191000 its reverse (19100011), we get a palindrome (11019291011).

The spelling of 11000191000 in words is "eleven billion, one hundred ninety-one thousand".