211123110100111 has 8 divisors (see below), whose sum is σ = 233091013123584. Its totient is φ = 189617689245720.

The previous prime is 211123110100051. The next prime is 211123110100129. The reversal of 211123110100111 is 111001011321112.

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

It is not a de Polignac number, because 211123110100111 - 2¹⁹ = 211123109575823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211123110700111) 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, 115620541311 + ... + 115620543136.

It is an arithmetic number, because the mean of its divisors is an integer number (29136376640448).

Almost surely, 2^{211123110100111} is an apocalyptic number.

211123110100111 is a deficient number, since it is larger than the sum of its proper divisors (21967903023473).

211123110100111 is a wasteful number, since it uses less digits than its factorization.

211123110100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231241084541.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 211123110100111 its reverse (111001011321112), we get a palindrome (322124121421223).

The spelling of 211123110100111 in words is "two hundred eleven trillion, one hundred twenty-three billion, one hundred ten million, one hundred thousand, one hundred eleven".