123211000012111 has 8 divisors (see below), whose sum is σ = 134412942717648. Its totient is φ = 112009214424000.

The previous prime is 123211000012073. The next prime is 123211000012141. The reversal of 123211000012111 is 111210000112321.

It is a happy number.

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-123211000012111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123211000012141) 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, 37636680 + ... + 40779181.

It is an arithmetic number, because the mean of its divisors is an integer number (16801617839706).

Almost surely, 2^{123211000012111} is an apocalyptic number.

123211000012111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123211000012111 is a deficient number, since it is larger than the sum of its proper divisors (11201942705537).

123211000012111 is a wasteful number, since it uses less digits than its factorization.

123211000012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78558713.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 123211000012111 its reverse (111210000112321), we get a palindrome (234421000124432).

The spelling of 123211000012111 in words is "one hundred twenty-three trillion, two hundred eleven billion, twelve thousand, one hundred eleven".