211423123120 has 80 divisors (see below), whose sum is σ = 541165854240. Its totient is φ = 76175769600.

The previous prime is 211423123073. The next prime is 211423123129. The reversal of 211423123120 is 21321324112.

211423123120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 211423123091 and 211423123100.

It is not an unprimeable number, because it can be changed into a prime (211423123129) 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, 1006161 + ... + 1198000.

It is an arithmetic number, because the mean of its divisors is an integer number (6764573178).

Almost surely, 2^211423123120 is an apocalyptic number.

211423123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211423123120 is an abundant number, since it is smaller than the sum of its proper divisors (329742731120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211423123120 is a wasteful number, since it uses less digits than its factorization.

211423123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204294 (or 2204288 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211423123120 its reverse (21321324112), we get a palindrome (232744447232).

The spelling of 211423123120 in words is "two hundred eleven billion, four hundred twenty-three million, one hundred twenty-three thousand, one hundred twenty".