204312240043 has 8 divisors (see below), whose sum is σ = 206310131456. Its totient is φ = 202314623400.

The previous prime is 204312240023. The next prime is 204312240061. The reversal of 204312240043 is 340042213402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204312240043 - 2¹⁷ = 204312108971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204312240023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629898 + ... + 1750768.

It is an arithmetic number, because the mean of its divisors is an integer number (25788766432).

Almost surely, 2^204312240043 is an apocalyptic number.

204312240043 is a deficient number, since it is larger than the sum of its proper divisors (1997891413).

204312240043 is a wasteful number, since it uses less digits than its factorization.

204312240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137385.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 204312240043 its reverse (340042213402), we get a palindrome (544354453445).

The spelling of 204312240043 in words is "two hundred four billion, three hundred twelve million, two hundred forty thousand, forty-three".