203112211101 has 8 divisors (see below), whose sum is σ = 270818432544. Its totient is φ = 135407065200.

The previous prime is 203112211069. The next prime is 203112211111. The reversal of 203112211101 is 101112211302.

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

It is not a de Polignac number, because 203112211101 - 2⁵ = 203112211069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112211111) 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, 434970 + ... + 771636.

It is an arithmetic number, because the mean of its divisors is an integer number (33852304068).

Almost surely, 2^203112211101 is an apocalyptic number.

It is an amenable number.

203112211101 is a deficient number, since it is larger than the sum of its proper divisors (67706221443).

203112211101 is a wasteful number, since it uses less digits than its factorization.

203112211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537771.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 203112211101 its reverse (101112211302), we get a palindrome (304224422403).

The spelling of 203112211101 in words is "two hundred three billion, one hundred twelve million, two hundred eleven thousand, one hundred one".