142120002400040 has 64 divisors (see below), whose sum is σ = 365452992864000. Its totient is φ = 48726650216448.

The previous prime is 142120002400003. The next prime is 142120002400199. The reversal of 142120002400040 is 40004200021241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 142120002399985 and 142120002400021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73993517 + ... + 75889923.

It is an arithmetic number, because the mean of its divisors is an integer number (5710203013500).

Almost surely, 2^{142120002400040} is an apocalyptic number.

142120002400040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142120002400040 is an abundant number, since it is smaller than the sum of its proper divisors (223332990463960).

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

142120002400040 is a wasteful number, since it uses less digits than its factorization.

142120002400040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164074 (or 2164070 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 142120002400040 its reverse (40004200021241), we get a palindrome (182124202421281).

The spelling of 142120002400040 in words is "one hundred forty-two trillion, one hundred twenty billion, two million, four hundred thousand, forty".