140310141243242 has 4 divisors (see below), whose sum is σ = 210465211864866. Its totient is φ = 70155070621620.

The previous prime is 140310141243241. The next prime is 140310141243301. The reversal of 140310141243242 is 242342141013041.

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., 140274390375001 + 35750868241 = 11843749^2 + 189079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140310141243199 and 140310141243208.

It is not an unprimeable number, because it can be changed into a prime (140310141243241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35077535310809 + ... + 35077535310812.

Almost surely, 2^{140310141243242} is an apocalyptic number.

140310141243242 is a deficient number, since it is larger than the sum of its proper divisors (70155070621624).

140310141243242 is an equidigital number, since it uses as much as digits as its factorization.

140310141243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70155070621623.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 140310141243242 its reverse (242342141013041), we get a palindrome (382652282256283).

The spelling of 140310141243242 in words is "one hundred forty trillion, three hundred ten billion, one hundred forty-one million, two hundred forty-three thousand, two hundred forty-two".