144431320232 has 8 divisors (see below), whose sum is σ = 270808725450. Its totient is φ = 72215660112.

The previous prime is 144431320219. The next prime is 144431320273. The reversal of 144431320232 is 232023134441.

It can be written as a sum of positive squares in only one way, i.e., 99430486276 + 45000833956 = 315326^2 + 212134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 144431320195 and 144431320204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9026957507 + ... + 9026957522.

Almost surely, 2^144431320232 is an apocalyptic number.

It is an amenable number.

144431320232 is a deficient number, since it is larger than the sum of its proper divisors (126377405218).

144431320232 is a wasteful number, since it uses less digits than its factorization.

144431320232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18053915035 (or 18053915031 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 144431320232 its reverse (232023134441), we get a palindrome (376454454673).

The spelling of 144431320232 in words is "one hundred forty-four billion, four hundred thirty-one million, three hundred twenty thousand, two hundred thirty-two".