140420203031142 has 48 divisors (see below), whose sum is σ = 307919063245248. Its totient is φ = 46241340652080.

The previous prime is 140420203031137. The next prime is 140420203031177. The reversal of 140420203031142 is 241130302024041.

140420203031142 is a `hidden beast` number, since 1 + 4 + 0 + 420 + 203 + 0 + 31 + 1 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46467217 + ... + 49396787.

It is an arithmetic number, because the mean of its divisors is an integer number (6414980484276).

Almost surely, 2^{140420203031142} is an apocalyptic number.

140420203031142 is an abundant number, since it is smaller than the sum of its proper divisors (167498860214106).

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

140420203031142 is a wasteful number, since it uses less digits than its factorization.

140420203031142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961745 (or 2961742 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 140420203031142 its reverse (241130302024041), we get a palindrome (381550505055183).

The spelling of 140420203031142 in words is "one hundred forty trillion, four hundred twenty billion, two hundred three million, thirty-one thousand, one hundred forty-two".