13442881061 has 2 divisors, whose sum is σ = 13442881062. Its totient is φ = 13442881060.

The previous prime is 13442881051. The next prime is 13442881099. The reversal of 13442881061 is 16018824431.

It is an a-pointer prime, because the next prime (13442881099) can be obtained adding 13442881061 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10862850625 + 2580030436 = 104225^2 + 50794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13442881061 is a prime.

It is a super-2 number, since 2×13442881061² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13442881051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721440530 + 6721440531.

It is an arithmetic number, because the mean of its divisors is an integer number (6721440531).

Almost surely, 2^13442881061 is an apocalyptic number.

It is an amenable number.

13442881061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13442881061 is an equidigital number, since it uses as much as digits as its factorization.

13442881061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 13442881061 in words is "thirteen billion, four hundred forty-two million, eight hundred eighty-one thousand, sixty-one".