144112321531 has 2 divisors, whose sum is σ = 144112321532. Its totient is φ = 144112321530.

The previous prime is 144112321481. The next prime is 144112321537. The reversal of 144112321531 is 135123211441.

It is a strong prime.

It is an emirp because it is prime and its reverse (135123211441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144112321531 - 2¹⁵ = 144112288763 is a prime.

It is a super-2 number, since 2×144112321531² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144112321531.

It is not a weakly prime, because it can be changed into another prime (144112321537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72056160765 + 72056160766.

It is an arithmetic number, because the mean of its divisors is an integer number (72056160766).

Almost surely, 2^144112321531 is an apocalyptic number.

144112321531 is a deficient number, since it is larger than the sum of its proper divisors (1).

144112321531 is an equidigital number, since it uses as much as digits as its factorization.

144112321531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

Adding to 144112321531 its reverse (135123211441), we get a palindrome (279235532972).

The spelling of 144112321531 in words is "one hundred forty-four billion, one hundred twelve million, three hundred twenty-one thousand, five hundred thirty-one".