201430204109 has 4 divisors (see below), whose sum is σ = 201431811900. Its totient is φ = 201428596320.

The previous prime is 201430204097. The next prime is 201430204121. The reversal of 201430204109 is 901402034102.

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

It is an interprime number because it is at equal distance from previous prime (201430204097) and next prime (201430204121).

It can be written as a sum of positive squares in 2 ways, for example, as 110874348484 + 90555855625 = 332978^2 + 300925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201430204109 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 (201430204009) 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, 598472 + ... + 872369.

It is an arithmetic number, because the mean of its divisors is an integer number (50357952975).

Almost surely, 2^201430204109 is an apocalyptic number.

It is an amenable number.

201430204109 is a deficient number, since it is larger than the sum of its proper divisors (1607791).

201430204109 is a wasteful number, since it uses less digits than its factorization.

201430204109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607790.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 201430204109 in words is "two hundred one billion, four hundred thirty million, two hundred four thousand, one hundred nine".