13144332431 has 2 divisors, whose sum is σ = 13144332432. Its totient is φ = 13144332430.

The previous prime is 13144332427. The next prime is 13144332451. The reversal of 13144332431 is 13423344131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13144332431 - 2² = 13144332427 is a prime.

It is a super-2 number, since 2×13144332431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13144332394 and 13144332403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13144332451) 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 as a sum of consecutive naturals, namely, 6572166215 + 6572166216.

It is an arithmetic number, because the mean of its divisors is an integer number (6572166216).

Almost surely, 2^13144332431 is an apocalyptic number.

13144332431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144332431 is an equidigital number, since it uses as much as digits as its factorization.

13144332431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

Adding to 13144332431 its reverse (13423344131), we get a palindrome (26567676562).

The spelling of 13144332431 in words is "thirteen billion, one hundred forty-four million, three hundred thirty-two thousand, four hundred thirty-one".