199830011 has 4 divisors (see below), whose sum is σ = 210347400. Its totient is φ = 189312624.

The previous prime is 199829983. The next prime is 199830047. The reversal of 199830011 is 110038991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110038991 = 67 ⋅1642373.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199830011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199830011.

It is not an unprimeable number, because it can be changed into a prime (199836011) 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, 5258666 + ... + 5258703.

It is an arithmetic number, because the mean of its divisors is an integer number (52586850).

Almost surely, 2^199830011 is an apocalyptic number.

199830011 is a deficient number, since it is larger than the sum of its proper divisors (10517389).

199830011 is a wasteful number, since it uses less digits than its factorization.

199830011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517388.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 199830011 is about 14136.1243274103. The cubic root of 199830011 is about 584.6378170626.

The spelling of 199830011 in words is "one hundred ninety-nine million, eight hundred thirty thousand, eleven".