142356421120 has 80 divisors (see below), whose sum is σ = 341923035168. Its totient is φ = 56842260480.

The previous prime is 142356421013. The next prime is 142356421147. The reversal of 142356421120 is 21124653241.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413067 + ... + 1510453.

Almost surely, 2^142356421120 is an apocalyptic number.

142356421120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142356421120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170961517584).

142356421120 is an abundant number, since it is smaller than the sum of its proper divisors (199566614048).

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

142356421120 is an frugal number, since it uses more digits than its factorization.

142356421120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97981 (or 97965 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 142356421120 in words is "one hundred forty-two billion, three hundred fifty-six million, four hundred twenty-one thousand, one hundred twenty".