13440013031 has 2 divisors, whose sum is σ = 13440013032. Its totient is φ = 13440013030.

The previous prime is 13440013009. The next prime is 13440013057. The reversal of 13440013031 is 13031004431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13440013031 is a prime.

It is a super-2 number, since 2×13440013031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13440012994 and 13440013012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13440013001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6720006515 + 6720006516.

It is an arithmetic number, because the mean of its divisors is an integer number (6720006516).

Almost surely, 2^13440013031 is an apocalyptic number.

13440013031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13440013031 is an equidigital number, since it uses as much as digits as its factorization.

13440013031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13440013031 its reverse (13031004431), we get a palindrome (26471017462).

The spelling of 13440013031 in words is "thirteen billion, four hundred forty million, thirteen thousand, thirty-one".