211434203113 has 12 divisors (see below), whose sum is σ = 251673937680. Its totient is φ = 177014679912.

The previous prime is 211434203089. The next prime is 211434203117. The reversal of 211434203113 is 311302434112.

It is not a de Polignac number, because 211434203113 - 2⁹ = 211434202601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211434203117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50172123 + ... + 50176336.

It is an arithmetic number, because the mean of its divisors is an integer number (20972828140).

Almost surely, 2^211434203113 is an apocalyptic number.

It is an amenable number.

211434203113 is a deficient number, since it is larger than the sum of its proper divisors (40239734567).

211434203113 is a wasteful number, since it uses less digits than its factorization.

211434203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100348516 (or 100348509 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 211434203113 its reverse (311302434112), we get a palindrome (522736637225).

The spelling of 211434203113 in words is "two hundred eleven billion, four hundred thirty-four million, two hundred three thousand, one hundred thirteen".