209430041603 has 4 divisors (see below), whose sum is σ = 210714888648. Its totient is φ = 208145194560.

The previous prime is 209430041599. The next prime is 209430041641. The reversal of 209430041603 is 306140034902.

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 209430041603 - 2² = 209430041599 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 209430041603.

It is not an unprimeable number, because it can be changed into a prime (209430041683) 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, 642423278 + ... + 642423603.

It is an arithmetic number, because the mean of its divisors is an integer number (52678722162).

Almost surely, 2^209430041603 is an apocalyptic number.

209430041603 is a deficient number, since it is larger than the sum of its proper divisors (1284847045).

209430041603 is a wasteful number, since it uses less digits than its factorization.

209430041603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284847044.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 209430041603 in words is "two hundred nine billion, four hundred thirty million, forty-one thousand, six hundred three".