211204121313 has 16 divisors (see below), whose sum is σ = 287323640640. Its totient is φ = 137951171904.

The previous prime is 211204121311. The next prime is 211204121327. The reversal of 211204121313 is 313121402112.

211204121313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211204121313 - 2¹ = 211204121311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211204121313.

It is not an unprimeable number, because it can be changed into a prime (211204121311) 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 15 ways as a sum of consecutive naturals, for example, 824031 + ... + 1049492.

It is an arithmetic number, because the mean of its divisors is an integer number (17957727540).

Almost surely, 2^211204121313 is an apocalyptic number.

It is an amenable number.

211204121313 is a deficient number, since it is larger than the sum of its proper divisors (76119519327).

211204121313 is a wasteful number, since it uses less digits than its factorization.

211204121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874288.

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

Adding to 211204121313 its reverse (313121402112), we get a palindrome (524325523425).

The spelling of 211204121313 in words is "two hundred eleven billion, two hundred four million, one hundred twenty-one thousand, three hundred thirteen".