144020240231 has 8 divisors (see below), whose sum is σ = 169904062464. Its totient is φ = 119463793560.

The previous prime is 144020240213. The next prime is 144020240233. The reversal of 144020240231 is 132042020441.

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

It is a de Polignac number, because none of the positive numbers 2^k-144020240231 is a prime.

It is a super-2 number, since 2×144020240231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144020240197 and 144020240206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144020240233) 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, 331843655 + ... + 331844088.

It is an arithmetic number, because the mean of its divisors is an integer number (21238007808).

Almost surely, 2^144020240231 is an apocalyptic number.

144020240231 is a deficient number, since it is larger than the sum of its proper divisors (25883822233).

144020240231 is an equidigital number, since it uses as much as digits as its factorization.

144020240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663687781.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 144020240231 its reverse (132042020441), we get a palindrome (276062260672).

The spelling of 144020240231 in words is "one hundred forty-four billion, twenty million, two hundred forty thousand, two hundred thirty-one".