11198990097 has 12 divisors (see below), whose sum is σ = 16775442320. Its totient is φ = 7465993236.

The previous prime is 11198990093. The next prime is 11198990119. The reversal of 11198990097 is 79009989111.

It is a happy number.

It is not a de Polignac number, because 11198990097 - 2² = 11198990093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11198990093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23042947 + ... + 23043432.

Almost surely, 2^11198990097 is an apocalyptic number.

It is an amenable number.

11198990097 is a deficient number, since it is larger than the sum of its proper divisors (5576452223).

11198990097 is an frugal number, since it uses more digits than its factorization.

11198990097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46086394 (or 46086382 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 54.

The spelling of 11198990097 in words is "eleven billion, one hundred ninety-eight million, nine hundred ninety thousand, ninety-seven".