210103231311 has 12 divisors (see below), whose sum is σ = 307756846800. Its totient is φ = 138096020160.

The previous prime is 210103231271. The next prime is 210103231363. The reversal of 210103231311 is 113132301012.

210103231311 is a `hidden beast` number, since 21 + 0 + 10 + 323 + 1 + 311 = 666.

210103231311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-210103231311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210103233311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164399386 + ... + 164400663.

It is an arithmetic number, because the mean of its divisors is an integer number (25646403900).

Almost surely, 2^210103231311 is an apocalyptic number.

210103231311 is a deficient number, since it is larger than the sum of its proper divisors (97653615489).

210103231311 is a wasteful number, since it uses less digits than its factorization.

210103231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328800126 (or 328800123 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 210103231311 its reverse (113132301012), we get a palindrome (323235532323).

The spelling of 210103231311 in words is "two hundred ten billion, one hundred three million, two hundred thirty-one thousand, three hundred eleven".