13445144042111 has 4 divisors (see below), whose sum is σ = 13731210936672. Its totient is φ = 13159077147552.

The previous prime is 13445144042101. The next prime is 13445144042117. The reversal of 13445144042111 is 11124044154431.

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 13445144042111 - 2¹⁴ = 13445144025727 is a prime.

It is a super-2 number, since 2×13445144042111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445144042117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143033447210 + ... + 143033447303.

It is an arithmetic number, because the mean of its divisors is an integer number (3432802734168).

Almost surely, 2^{13445144042111} is an apocalyptic number.

13445144042111 is a deficient number, since it is larger than the sum of its proper divisors (286066894561).

13445144042111 is an equidigital number, since it uses as much as digits as its factorization.

13445144042111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286066894560.

The product of its (nonzero) digits is 30720, while the sum is 35.

Adding to 13445144042111 its reverse (11124044154431), we get a palindrome (24569188196542).

The spelling of 13445144042111 in words is "thirteen trillion, four hundred forty-five billion, one hundred forty-four million, forty-two thousand, one hundred eleven".