203254856299009 has 16 divisors (see below), whose sum is σ = 206853371278848. Its totient is φ = 199673435820672.

The previous prime is 203254856299007. The next prime is 203254856299021. The reversal of 203254856299009 is 900992658452302.

It is a cyclic number.

It is not a de Polignac number, because 203254856299009 - 2¹ = 203254856299007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203254856299007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53997759 + ... + 57639115.

It is an arithmetic number, because the mean of its divisors is an integer number (12928335704928).

Almost surely, 2^{203254856299009} is an apocalyptic number.

It is an amenable number.

203254856299009 is a deficient number, since it is larger than the sum of its proper divisors (3598514979839).

203254856299009 is a wasteful number, since it uses less digits than its factorization.

203254856299009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643704.

The product of its (nonzero) digits is 83980800, while the sum is 64.

The spelling of 203254856299009 in words is "two hundred three trillion, two hundred fifty-four billion, eight hundred fifty-six million, two hundred ninety-nine thousand, nine".