123211000012112 has 40 divisors (see below), whose sum is σ = 241739677149600. Its totient is φ = 60827440959360.

The previous prime is 123211000012073. The next prime is 123211000012141. The reversal of 123211000012112 is 211210000112321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25047839 + ... + 29560382.

It is an arithmetic number, because the mean of its divisors is an integer number (6043491928740).

Almost surely, 2^{123211000012112} is an apocalyptic number.

It is an amenable number.

123211000012112 is a deficient number, since it is larger than the sum of its proper divisors (118528677137488).

123211000012112 is a wasteful number, since it uses less digits than its factorization.

123211000012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54610011 (or 54610005 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 123211000012112 its reverse (211210000112321), we get a palindrome (334421000124433).

The spelling of 123211000012112 in words is "one hundred twenty-three trillion, two hundred eleven billion, twelve thousand, one hundred twelve".