140244020201423 has 4 divisors (see below), whose sum is σ = 140493121481208. Its totient is φ = 139994918921640.

The previous prime is 140244020201419. The next prime is 140244020201449. The reversal of 140244020201423 is 324102020442041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140244020201423 - 2² = 140244020201419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140244020701423) 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, 124550639048 + ... + 124550640173.

It is an arithmetic number, because the mean of its divisors is an integer number (35123280370302).

Almost surely, 2^{140244020201423} is an apocalyptic number.

140244020201423 is a deficient number, since it is larger than the sum of its proper divisors (249101279785).

140244020201423 is an equidigital number, since it uses as much as digits as its factorization.

140244020201423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249101279784.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 140244020201423 its reverse (324102020442041), we get a palindrome (464346040643464).

The spelling of 140244020201423 in words is "one hundred forty trillion, two hundred forty-four billion, twenty million, two hundred one thousand, four hundred twenty-three".