140042420120420 has 48 divisors (see below), whose sum is σ = 297636993279360. Its totient is φ = 55341196647936.

The previous prime is 140042420120411. The next prime is 140042420120557. The reversal of 140042420120420 is 24021024240041.

It is a happy number.

It is a super-2 number, since 2×140042420120420² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140042420120420.

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, 110845841 + ... + 112102119.

It is an arithmetic number, because the mean of its divisors is an integer number (6200770693320).

Almost surely, 2^{140042420120420} is an apocalyptic number.

140042420120420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140042420120420 is an abundant number, since it is smaller than the sum of its proper divisors (157594573158940).

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

140042420120420 is a wasteful number, since it uses less digits than its factorization.

140042420120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323524 (or 1323522 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 140042420120420 its reverse (24021024240041), we get a palindrome (164063444360461).

The spelling of 140042420120420 in words is "one hundred forty trillion, forty-two billion, four hundred twenty million, one hundred twenty thousand, four hundred twenty".