140238730811 has 4 divisors (see below), whose sum is σ = 140239506624. Its totient is φ = 140237955000.

The previous prime is 140238730781. The next prime is 140238730813. The reversal of 140238730811 is 118037832041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140238730811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140238730813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42221 + ... + 531281.

It is an arithmetic number, because the mean of its divisors is an integer number (35059876656).

Almost surely, 2^140238730811 is an apocalyptic number.

140238730811 is a deficient number, since it is larger than the sum of its proper divisors (775813).

140238730811 is an equidigital number, since it uses as much as digits as its factorization.

140238730811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775812.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 140238730811 in words is "one hundred forty billion, two hundred thirty-eight million, seven hundred thirty thousand, eight hundred eleven".