199454130223 has 4 divisors (see below), whose sum is σ = 199456445088. Its totient is φ = 199451815360.

The previous prime is 199454130209. The next prime is 199454130229. The reversal of 199454130223 is 322031454991.

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

It is a cyclic number.

It is not a de Polignac number, because 199454130223 - 2⁵ = 199454130191 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 199454130223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199454130229) 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, 1022983 + ... + 1202248.

It is an arithmetic number, because the mean of its divisors is an integer number (49864111272).

Almost surely, 2^199454130223 is an apocalyptic number.

199454130223 is a deficient number, since it is larger than the sum of its proper divisors (2314865).

199454130223 is an equidigital number, since it uses as much as digits as its factorization.

199454130223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314864.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 199454130223 in words is "one hundred ninety-nine billion, four hundred fifty-four million, one hundred thirty thousand, two hundred twenty-three".