211001001102123 has 16 divisors (see below), whose sum is σ = 286645023275040. Its totient is φ = 138012196385024.

The previous prime is 211001001102109. The next prime is 211001001102161. The reversal of 211001001102123 is 321201100100112.

It is a cyclic number.

It is not a de Polignac number, because 211001001102123 - 2²² = 211000996907819 is a prime.

It is a super-2 number, since 2×211001001102123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211001001102163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16532215 + ... + 26368847.

It is an arithmetic number, because the mean of its divisors is an integer number (17915313954690).

Almost surely, 2^{211001001102123} is an apocalyptic number.

211001001102123 is a deficient number, since it is larger than the sum of its proper divisors (75644022172917).

211001001102123 is a wasteful number, since it uses less digits than its factorization.

211001001102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971598.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 211001001102123 its reverse (321201100100112), we get a palindrome (532202101202235).

The spelling of 211001001102123 in words is "two hundred eleven trillion, one billion, one million, one hundred two thousand, one hundred twenty-three".