142340321040 has 80 divisors (see below), whose sum is σ = 442161426048. Its totient is φ = 37879446528.

The previous prime is 142340321033. The next prime is 142340321063. The reversal of 142340321040 is 40123043241.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 142340321040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492037 + ... + 725796.

Almost surely, 2^142340321040 is an apocalyptic number.

142340321040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142340321040 is an abundant number, since it is smaller than the sum of its proper divisors (299821105008).

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

142340321040 is a wasteful number, since it uses less digits than its factorization.

142340321040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218336 (or 1218330 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 142340321040 its reverse (40123043241), we get a palindrome (182463364281).

The spelling of 142340321040 in words is "one hundred forty-two billion, three hundred forty million, three hundred twenty-one thousand, forty".