140401020423 has 4 divisors (see below), whose sum is σ = 187201360568. Its totient is φ = 93600680280.

The previous prime is 140401020373. The next prime is 140401020427. The reversal of 140401020423 is 324020104041.

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

It is not a de Polignac number, because 140401020423 - 2¹⁶ = 140400954887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140401020423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140401020427) 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, 23400170068 + ... + 23400170073.

It is an arithmetic number, because the mean of its divisors is an integer number (46800340142).

Almost surely, 2^140401020423 is an apocalyptic number.

140401020423 is a deficient number, since it is larger than the sum of its proper divisors (46800340145).

140401020423 is an equidigital number, since it uses as much as digits as its factorization.

140401020423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46800340144.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 140401020423 its reverse (324020104041), we get a palindrome (464421124464).

The spelling of 140401020423 in words is "one hundred forty billion, four hundred one million, twenty thousand, four hundred twenty-three".