199010001011 has 2 divisors, whose sum is σ = 199010001012. Its totient is φ = 199010001010.

The previous prime is 199010001007. The next prime is 199010001017. The reversal of 199010001011 is 110100010991.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199010001011 - 2² = 199010001007 is a prime.

It is not a weakly prime, because it can be changed into another prime (199010001017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99505000505 + 99505000506.

It is an arithmetic number, because the mean of its divisors is an integer number (99505000506).

Almost surely, 2^199010001011 is an apocalyptic number.

199010001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

199010001011 is an equidigital number, since it uses as much as digits as its factorization.

199010001011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 199010001011 in words is "one hundred ninety-nine billion, ten million, one thousand, eleven".