140023323401 has 4 divisors (see below), whose sum is σ = 150794348292. Its totient is φ = 129252298512.

The previous prime is 140023323379. The next prime is 140023323403. The reversal of 140023323401 is 104323320041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104323320041 = 193 ⋅540535337.

It can be written as a sum of positive squares in 2 ways, for example, as 53396117776 + 86627205625 = 231076^2 + 294325^2 .

It is a cyclic number.

It is not a de Polignac number, because 140023323401 - 2²⁶ = 139956214537 is a prime.

It is a super-3 number, since 3×140023323401³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140023323403) 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, 5385512426 + ... + 5385512451.

It is an arithmetic number, because the mean of its divisors is an integer number (37698587073).

Almost surely, 2^140023323401 is an apocalyptic number.

It is an amenable number.

140023323401 is a deficient number, since it is larger than the sum of its proper divisors (10771024891).

140023323401 is a wasteful number, since it uses less digits than its factorization.

140023323401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10771024890.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 140023323401 its reverse (104323320041), we get a palindrome (244346643442).

The spelling of 140023323401 in words is "one hundred forty billion, twenty-three million, three hundred twenty-three thousand, four hundred one".