140243342342042 has 16 divisors (see below), whose sum is σ = 221606800272960. Its totient is φ = 66380073715872.

The previous prime is 140243342342029. The next prime is 140243342342111. The reversal of 140243342342042 is 240243243342041.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 140243342341987 and 140243342342005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416149363 + ... + 1416248390.

It is an arithmetic number, because the mean of its divisors is an integer number (13850425017060).

Almost surely, 2^{140243342342042} is an apocalyptic number.

140243342342042 is a deficient number, since it is larger than the sum of its proper divisors (81363457930918).

140243342342042 is a wasteful number, since it uses less digits than its factorization.

140243342342042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832399077.

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 140243342342042 its reverse (240243243342041), we get a palindrome (380486585684083).

Subtracting 140243342342042 from its reverse (240243243342041), we obtain a palindrome (99999900999999).

The spelling of 140243342342042 in words is "one hundred forty trillion, two hundred forty-three billion, three hundred forty-two million, three hundred forty-two thousand, forty-two".