211211230113 has 48 divisors (see below), whose sum is σ = 330074873856. Its totient is φ = 129374616960.

The previous prime is 211211230093. The next prime is 211211230117. The reversal of 211211230113 is 311032112112.

211211230113 is a `hidden beast` number, since 211 + 211 + 230 + 1 + 13 = 666.

211211230113 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 211211230113 - 2¹⁷ = 211211099041 is a prime.

It is a super-2 number, since 2×211211230113² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211230117) 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 47 ways as a sum of consecutive naturals, for example, 23912608 + ... + 23921438.

It is an arithmetic number, because the mean of its divisors is an integer number (6876559872).

Almost surely, 2^211211230113 is an apocalyptic number.

It is an amenable number.

211211230113 is a deficient number, since it is larger than the sum of its proper divisors (118863643743).

211211230113 is a wasteful number, since it uses less digits than its factorization.

211211230113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774 (or 9771 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211211230113 its reverse (311032112112), we get a palindrome (522243342225).

The spelling of 211211230113 in words is "two hundred eleven billion, two hundred eleven million, two hundred thirty thousand, one hundred thirteen".