144420313231 has 8 divisors (see below), whose sum is σ = 152924544864. Its totient is φ = 135917072640.

The previous prime is 144420313217. The next prime is 144420313253. The reversal of 144420313231 is 132313024441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144420313231 - 2⁵ = 144420313199 is a prime.

It is a super-2 number, since 2×144420313231² (a number of 23 digits) contains 22 as substring.

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 144420313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144420313931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63451 + ... + 541171.

It is an arithmetic number, because the mean of its divisors is an integer number (19115568108).

Almost surely, 2^144420313231 is an apocalyptic number.

144420313231 is a deficient number, since it is larger than the sum of its proper divisors (8504231633).

144420313231 is a wasteful number, since it uses less digits than its factorization.

144420313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495521.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 144420313231 its reverse (132313024441), we get a palindrome (276733337672).

The spelling of 144420313231 in words is "one hundred forty-four billion, four hundred twenty million, three hundred thirteen thousand, two hundred thirty-one".