211123133210 has 64 divisors (see below), whose sum is σ = 423362764800. Its totient is φ = 75154497600.

The previous prime is 211123133191. The next prime is 211123133213. The reversal of 211123133210 is 12331321112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (211123133213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1483055 + ... + 1619165.

It is an arithmetic number, because the mean of its divisors is an integer number (6615043200).

Almost surely, 2^211123133210 is an apocalyptic number.

211123133210 is an abundant number, since it is smaller than the sum of its proper divisors (212239631590).

211123133210 is a wasteful number, since it uses less digits than its factorization.

211123133210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136427.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211123133210 its reverse (12331321112), we get a palindrome (223454454322).

The spelling of 211123133210 in words is "two hundred eleven billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred ten".