203112013201109 has 8 divisors (see below), whose sum is σ = 203182415328672. Its totient is φ = 203041618652880.

The previous prime is 203112013201067. The next prime is 203112013201127. The reversal of 203112013201109 is 901102310211302.

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 203112013201109 - 2⁸ = 203112013200853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112013201189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51975887 + ... + 55746899.

It is an arithmetic number, because the mean of its divisors is an integer number (25397801916084).

Almost surely, 2^{203112013201109} is an apocalyptic number.

It is an amenable number.

203112013201109 is a deficient number, since it is larger than the sum of its proper divisors (70402127563).

203112013201109 is a wasteful number, since it uses less digits than its factorization.

203112013201109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789667.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 203112013201109 in words is "two hundred three trillion, one hundred twelve billion, thirteen million, two hundred one thousand, one hundred nine".