140243312402142 has 8 divisors (see below), whose sum is σ = 280486624804296. Its totient is φ = 46747770800712.

The previous prime is 140243312402117. The next prime is 140243312402143. The reversal of 140243312402142 is 241204213342041.

It is a sphenic number, since it is the product of 3 distinct primes.

140243312402142 is an admirable number.

It is a super-2 number, since 2×140243312402142² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140243312402143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11686942700173 + ... + 11686942700184.

It is an arithmetic number, because the mean of its divisors is an integer number (35060828100537).

Almost surely, 2^{140243312402142} is an apocalyptic number.

140243312402142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140243312402142 is a wasteful number, since it uses less digits than its factorization.

140243312402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23373885400362.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 140243312402142 its reverse (241204213342041), we get a palindrome (381447525744183).

The spelling of 140243312402142 in words is "one hundred forty trillion, two hundred forty-three billion, three hundred twelve million, four hundred two thousand, one hundred forty-two".