140430021023441 has 4 divisors (see below), whose sum is σ = 140483846254500. Its totient is φ = 140376195792384.

The previous prime is 140430021023351. The next prime is 140430021023449. The reversal of 140430021023441 is 144320120034041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91041748896400 + 49388272127041 = 9541580^2 + 7027679^2 .

It is a cyclic number.

It is not a de Polignac number, because 140430021023441 - 2¹⁸ = 140430020761297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140430021023449) 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, 26912611616 + ... + 26912616833.

It is an arithmetic number, because the mean of its divisors is an integer number (35120961563625).

Almost surely, 2^{140430021023441} is an apocalyptic number.

It is an amenable number.

140430021023441 is a deficient number, since it is larger than the sum of its proper divisors (53825231059).

140430021023441 is an equidigital number, since it uses as much as digits as its factorization.

140430021023441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53825231058.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 140430021023441 its reverse (144320120034041), we get a palindrome (284750141057482).

The spelling of 140430021023441 in words is "one hundred forty trillion, four hundred thirty billion, twenty-one million, twenty-three thousand, four hundred forty-one".