144121321504351 has 4 divisors (see below), whose sum is σ = 144653134499104. Its totient is φ = 143589508509600.

The previous prime is 144121321504343. The next prime is 144121321504453. The reversal of 144121321504351 is 153405123121441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144121321504351 - 2³ = 144121321504343 is a prime.

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 144121321504351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144121321504301) 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, 265906496970 + ... + 265906497511.

It is an arithmetic number, because the mean of its divisors is an integer number (36163283624776).

Almost surely, 2^{144121321504351} is an apocalyptic number.

144121321504351 is a deficient number, since it is larger than the sum of its proper divisors (531812994753).

144121321504351 is an equidigital number, since it uses as much as digits as its factorization.

144121321504351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531812994752.

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 144121321504351 its reverse (153405123121441), we get a palindrome (297526444625792).

The spelling of 144121321504351 in words is "one hundred forty-four trillion, one hundred twenty-one billion, three hundred twenty-one million, five hundred four thousand, three hundred fifty-one".