123213016444672 has 144 divisors (see below), whose sum is σ = 313156489024512. Its totient is φ = 46983686492160.

The previous prime is 123213016444643. The next prime is 123213016444691. The reversal of 123213016444672 is 276444610312321.

123213016444672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65569923 + ... + 67422850.

It is an arithmetic number, because the mean of its divisors is an integer number (2174697840448).

Almost surely, 2^{123213016444672} is an apocalyptic number.

It is an amenable number.

123213016444672 is an abundant number, since it is smaller than the sum of its proper divisors (189943472579840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123213016444672 is a wasteful number, since it uses less digits than its factorization.

123213016444672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132992854 (or 132992840 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 46.

Adding to 123213016444672 its reverse (276444610312321), we get a palindrome (399657626756993).

The spelling of 123213016444672 in words is "one hundred twenty-three trillion, two hundred thirteen billion, sixteen million, four hundred forty-four thousand, six hundred seventy-two".