140234320243442 has 16 divisors (see below), whose sum is σ = 210516268641120. Its totient is φ = 70062252139968.

The previous prime is 140234320243429. The next prime is 140234320243487. The reversal of 140234320243442 is 244342023432041.

It is a junction number, because it is equal to n+sod(n) for n = 140234320243396 and 140234320243405.

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, 7727309 + ... + 18443967.

It is an arithmetic number, because the mean of its divisors is an integer number (13157266790070).

Almost surely, 2^{140234320243442} is an apocalyptic number.

140234320243442 is a deficient number, since it is larger than the sum of its proper divisors (70281948397678).

140234320243442 is a wasteful number, since it uses less digits than its factorization.

140234320243442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10721785.

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

Adding to 140234320243442 its reverse (244342023432041), we get a palindrome (384576343675483).

The spelling of 140234320243442 in words is "one hundred forty trillion, two hundred thirty-four billion, three hundred twenty million, two hundred forty-three thousand, four hundred forty-two".