199123635041 has 4 divisors (see below), whose sum is σ = 199357075092. Its totient is φ = 198890194992.

The previous prime is 199123635037. The next prime is 199123635101. The reversal of 199123635041 is 140536321991.

199123635041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48094244416 + 151029390625 = 219304^2 + 388625^2 .

It is a cyclic number.

It is not a de Polignac number, because 199123635041 - 2² = 199123635037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199123634983 and 199123635001.

It is not an unprimeable number, because it can be changed into a prime (199123635541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116718746 + ... + 116720451.

It is an arithmetic number, because the mean of its divisors is an integer number (49839268773).

Almost surely, 2^199123635041 is an apocalyptic number.

It is an amenable number.

199123635041 is a deficient number, since it is larger than the sum of its proper divisors (233440051).

199123635041 is an equidigital number, since it uses as much as digits as its factorization.

199123635041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233440050.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 199123635041 in words is "one hundred ninety-nine billion, one hundred twenty-three million, six hundred thirty-five thousand, forty-one".