123215334555142 has 32 divisors (see below), whose sum is σ = 192113114457600. Its totient is φ = 59217950704608.

The previous prime is 123215334555083. The next prime is 123215334555143. The reversal of 123215334555142 is 241555433512321.

123215334555142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123215334555092 and 123215334555101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123215334555143) 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, 153019459 + ... + 153822577.

It is an arithmetic number, because the mean of its divisors is an integer number (6003534826800).

Almost surely, 2^{123215334555142} is an apocalyptic number.

123215334555142 is a deficient number, since it is larger than the sum of its proper divisors (68897779902458).

123215334555142 is a wasteful number, since it uses less digits than its factorization.

123215334555142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828220.

The product of its digits is 2160000, while the sum is 46.

The spelling of 123215334555142 in words is "one hundred twenty-three trillion, two hundred fifteen billion, three hundred thirty-four million, five hundred fifty-five thousand, one hundred forty-two".