123210422142 has 16 divisors (see below), whose sum is σ = 246425706000. Its totient is φ = 41069330432.

The previous prime is 123210422141. The next prime is 123210422161. The reversal of 123210422142 is 241224012321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123210422141) 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, 183484 + ... + 529232.

It is an arithmetic number, because the mean of its divisors is an integer number (15401606625).

Almost surely, 2^123210422142 is an apocalyptic number.

123210422142 is an abundant number, since it is smaller than the sum of its proper divisors (123215283858).

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

123210422142 is a wasteful number, since it uses less digits than its factorization.

123210422142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405147.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 123210422142 its reverse (241224012321), we get a palindrome (364434434463).

The spelling of 123210422142 in words is "one hundred twenty-three billion, two hundred ten million, four hundred twenty-two thousand, one hundred forty-two".