9113201999 has 12 divisors (see below), whose sum is σ = 10022512920. Its totient is φ = 8280162000.

The previous prime is 9113201989. The next prime is 9113202037. The reversal of 9113201999 is 9991023119.

It is a de Polignac number, because none of the positive numbers 2^k-9113201999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9113201939) 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, 210212 + ... + 249830.

It is an arithmetic number, because the mean of its divisors is an integer number (835209410).

Almost surely, 2^9113201999 is an apocalyptic number.

9113201999 is a deficient number, since it is larger than the sum of its proper divisors (909310921).

9113201999 is a wasteful number, since it uses less digits than its factorization.

9113201999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41542 (or 41531 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 44.

The square root of 9113201999 is about 95463.0923393958. The cubic root of 9113201999 is about 2088.7686098097.

It can be divided in two parts, 911320 and 1999, that added together give a palindrome (913319).

The spelling of 9113201999 in words is "nine billion, one hundred thirteen million, two hundred one thousand, nine hundred ninety-nine".