140420231210423 has 16 divisors (see below), whose sum is σ = 141172759029120. Its totient is φ = 139669563944736.

The previous prime is 140420231210393. The next prime is 140420231210461. The reversal of 140420231210423 is 324012132024041.

It is a cyclic number.

It is not a de Polignac number, because 140420231210423 - 2²⁰ = 140420230161847 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 (140420231210123) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1597873961 + ... + 1597961837.

It is an arithmetic number, because the mean of its divisors is an integer number (8823297439320).

Almost surely, 2^{140420231210423} is an apocalyptic number.

140420231210423 is a deficient number, since it is larger than the sum of its proper divisors (752527818697).

140420231210423 is an equidigital number, since it uses as much as digits as its factorization.

140420231210423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98366.

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

Adding to 140420231210423 its reverse (324012132024041), we get a palindrome (464432363234464).

The spelling of 140420231210423 in words is "one hundred forty trillion, four hundred twenty billion, two hundred thirty-one million, two hundred ten thousand, four hundred twenty-three".