142100140120420 has 48 divisors (see below), whose sum is σ = 314124011409600. Its totient is φ = 53847117774720.

The previous prime is 142100140120339. The next prime is 142100140120429. The reversal of 142100140120420 is 24021041001241.

It is a junction number, because it is equal to n+sod(n) for n = 142100140120391 and 142100140120400.

It is not an unprimeable number, because it can be changed into a prime (142100140120429) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10460515 + ... + 19839925.

It is an arithmetic number, because the mean of its divisors is an integer number (6544250237700).

Almost surely, 2^{142100140120420} is an apocalyptic number.

142100140120420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142100140120420 is an abundant number, since it is smaller than the sum of its proper divisors (172023871289180).

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

142100140120420 is a wasteful number, since it uses less digits than its factorization.

142100140120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419308 (or 9419306 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 142100140120420 its reverse (24021041001241), we get a palindrome (166121181121661).

The spelling of 142100140120420 in words is "one hundred forty-two trillion, one hundred billion, one hundred forty million, one hundred twenty thousand, four hundred twenty".