140123440302242 has 4 divisors (see below), whose sum is σ = 210185160453366. Its totient is φ = 70061720151120.

The previous prime is 140123440302229. The next prime is 140123440302271. The reversal of 140123440302242 is 242203044321041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 111877180994401 + 28246259307841 = 10577201^2 + 5314721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140123440302199 and 140123440302208.

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 as a sum of consecutive naturals, namely, 35030860075559 + ... + 35030860075562.

Almost surely, 2^{140123440302242} is an apocalyptic number.

140123440302242 is a deficient number, since it is larger than the sum of its proper divisors (70061720151124).

140123440302242 is an equidigital number, since it uses as much as digits as its factorization.

140123440302242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70061720151123.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 140123440302242 its reverse (242203044321041), we get a palindrome (382326484623283).

The spelling of 140123440302242 in words is "one hundred forty trillion, one hundred twenty-three billion, four hundred forty million, three hundred two thousand, two hundred forty-two".