211011022120123 has 8 divisors (see below), whose sum is σ = 218876039513648. Its totient is φ = 203280449468544.

The previous prime is 211011022120109. The next prime is 211011022120127. The reversal of 211011022120123 is 321021220110112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211011022120123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211011022120123.

It is not an unprimeable number, because it can be changed into a prime (211011022120127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33611182290 + ... + 33611188567.

It is an arithmetic number, because the mean of its divisors is an integer number (27359504939206).

Almost surely, 2^{211011022120123} is an apocalyptic number.

211011022120123 is a deficient number, since it is larger than the sum of its proper divisors (7865017393525).

211011022120123 is an equidigital number, since it uses as much as digits as its factorization.

211011022120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67222370973.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211011022120123 its reverse (321021220110112), we get a palindrome (532032242230235).

The spelling of 211011022120123 in words is "two hundred eleven trillion, eleven billion, twenty-two million, one hundred twenty thousand, one hundred twenty-three".