135444304111 has 4 divisors (see below), whose sum is σ = 135445488552. Its totient is φ = 135443119672.

The previous prime is 135444304109. The next prime is 135444304117. The reversal of 135444304111 is 111403444531.

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 135444304111 - 2¹ = 135444304109 is a prime.

It is a super-2 number, since 2×135444304111² (a number of 23 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 (135444304117) 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 in 3 ways as a sum of consecutive naturals, for example, 399865 + ... + 656338.

It is an arithmetic number, because the mean of its divisors is an integer number (33861372138).

Almost surely, 2^135444304111 is an apocalyptic number.

135444304111 is a deficient number, since it is larger than the sum of its proper divisors (1184441).

135444304111 is a wasteful number, since it uses less digits than its factorization.

135444304111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184440.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 135444304111 its reverse (111403444531), we get a palindrome (246847748642).

The spelling of 135444304111 in words is "one hundred thirty-five billion, four hundred forty-four million, three hundred four thousand, one hundred eleven".