203212130111 has 8 divisors (see below), whose sum is σ = 216484705920. Its totient is φ = 190197274392.

The previous prime is 203212130083. The next prime is 203212130137. The reversal of 203212130111 is 111031212302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203212130111 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 203212130111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212135111) 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, 64428395 + ... + 64431548.

It is an arithmetic number, because the mean of its divisors is an integer number (27060588240).

Almost surely, 2^203212130111 is an apocalyptic number.

203212130111 is a deficient number, since it is larger than the sum of its proper divisors (13272575809).

203212130111 is a wasteful number, since it uses less digits than its factorization.

203212130111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128860045.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 203212130111 its reverse (111031212302), we get a palindrome (314243342413).

The spelling of 203212130111 in words is "two hundred three billion, two hundred twelve million, one hundred thirty thousand, one hundred eleven".