144320312444131 has 4 divisors (see below), whose sum is σ = 144320340110112. Its totient is φ = 144320284778152.

The previous prime is 144320312444123. The next prime is 144320312444137. The reversal of 144320312444131 is 131444213023441.

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 144320312444131 - 2³ = 144320312444123 is a prime.

It is a super-2 number, since 2×144320312444131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144320312444137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370411 + ... + 17320516.

It is an arithmetic number, because the mean of its divisors is an integer number (36080085027528).

Almost surely, 2^{144320312444131} is an apocalyptic number.

144320312444131 is a deficient number, since it is larger than the sum of its proper divisors (27665981).

144320312444131 is an equidigital number, since it uses as much as digits as its factorization.

144320312444131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27665980.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 144320312444131 its reverse (131444213023441), we get a palindrome (275764525467572).

The spelling of 144320312444131 in words is "one hundred forty-four trillion, three hundred twenty billion, three hundred twelve million, four hundred forty-four thousand, one hundred thirty-one".