142420100020 has 72 divisors (see below), whose sum is σ = 328832179200. Its totient is φ = 51775120320.

The previous prime is 142420099981. The next prime is 142420100021. The reversal of 142420100020 is 20001024241.

It is a junction number, because it is equal to n+sod(n) for n = 142420099967 and 142420100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142420100021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14125341 + ... + 14135419.

It is an arithmetic number, because the mean of its divisors is an integer number (4567113600).

Almost surely, 2^142420100020 is an apocalyptic number.

142420100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142420100020 is an abundant number, since it is smaller than the sum of its proper divisors (186412079180).

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

142420100020 is a wasteful number, since it uses less digits than its factorization.

142420100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15949 (or 15936 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 142420100020 its reverse (20001024241), we get a palindrome (162421124261).

The spelling of 142420100020 in words is "one hundred forty-two billion, four hundred twenty million, one hundred thousand, twenty".