203211412113 has 4 divisors (see below), whose sum is σ = 270948549488. Its totient is φ = 135474274740.

The previous prime is 203211412087. The next prime is 203211412121. The reversal of 203211412113 is 311214112302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 203211412113 - 2²⁰ = 203210363537 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 203211412113.

It is not an unprimeable number, because it can be changed into a prime (203211412163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33868568683 + ... + 33868568688.

It is an arithmetic number, because the mean of its divisors is an integer number (67737137372).

Almost surely, 2^203211412113 is an apocalyptic number.

It is an amenable number.

203211412113 is a deficient number, since it is larger than the sum of its proper divisors (67737137375).

203211412113 is an equidigital number, since it uses as much as digits as its factorization.

203211412113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67737137374.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 203211412113 its reverse (311214112302), we get a palindrome (514425524415).

The spelling of 203211412113 in words is "two hundred three billion, two hundred eleven million, four hundred twelve thousand, one hundred thirteen".