123142031122 has 16 divisors (see below), whose sum is σ = 202140816192. Its totient is φ = 55797074320.

The previous prime is 123142031099. The next prime is 123142031137. The reversal of 123142031122 is 221130241321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123142031093 and 123142031102.

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 7 ways as a sum of consecutive naturals, for example, 8821678 + ... + 8835625.

It is an arithmetic number, because the mean of its divisors is an integer number (12633801012).

Almost surely, 2^123142031122 is an apocalyptic number.

123142031122 is a deficient number, since it is larger than the sum of its proper divisors (78998785070).

123142031122 is a wasteful number, since it uses less digits than its factorization.

123142031122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17657633.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 123142031122 its reverse (221130241321), we get a palindrome (344272272443).

The spelling of 123142031122 in words is "one hundred twenty-three billion, one hundred forty-two million, thirty-one thousand, one hundred twenty-two".