144321201243 has 24 divisors (see below), whose sum is σ = 220648144080. Its totient is φ = 90646620480.

The previous prime is 144321201239. The next prime is 144321201253. The reversal of 144321201243 is 342102123441.

144321201243 is a `hidden beast` number, since 1 + 4 + 432 + 1 + 201 + 24 + 3 = 666.

It is not a de Polignac number, because 144321201243 - 2² = 144321201239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144321201253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2300496 + ... + 2362397.

It is an arithmetic number, because the mean of its divisors is an integer number (9193672670).

Almost surely, 2^144321201243 is an apocalyptic number.

144321201243 is a deficient number, since it is larger than the sum of its proper divisors (76326942837).

144321201243 is a wasteful number, since it uses less digits than its factorization.

144321201243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663099 (or 4663096 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 144321201243 its reverse (342102123441), we get a palindrome (486423324684).

The spelling of 144321201243 in words is "one hundred forty-four billion, three hundred twenty-one million, two hundred one thousand, two hundred forty-three".