135444711823 has 2 divisors, whose sum is σ = 135444711824. Its totient is φ = 135444711822.

The previous prime is 135444711811. The next prime is 135444711827. The reversal of 135444711823 is 328117444531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135444711823 - 2⁵ = 135444711791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135444711823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135444711827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67722355911 + 67722355912.

It is an arithmetic number, because the mean of its divisors is an integer number (67722355912).

Almost surely, 2^135444711823 is an apocalyptic number.

135444711823 is a deficient number, since it is larger than the sum of its proper divisors (1).

135444711823 is an equidigital number, since it uses as much as digits as its factorization.

135444711823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The spelling of 135444711823 in words is "one hundred thirty-five billion, four hundred forty-four million, seven hundred eleven thousand, eight hundred twenty-three".