135220041113 has 4 divisors (see below), whose sum is σ = 135222093108. Its totient is φ = 135217989120.

The previous prime is 135220041049. The next prime is 135220041127. The reversal of 135220041113 is 311140022531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127426153024 + 7793888089 = 356968^2 + 88283^2 .

It is a cyclic number.

It is not a de Polignac number, because 135220041113 - 2⁶ = 135220041049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135220041613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923756 + ... + 1060077.

It is an arithmetic number, because the mean of its divisors is an integer number (33805523277).

Almost surely, 2^135220041113 is an apocalyptic number.

It is an amenable number.

135220041113 is a deficient number, since it is larger than the sum of its proper divisors (2051995).

135220041113 is an equidigital number, since it uses as much as digits as its factorization.

135220041113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051994.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 135220041113 its reverse (311140022531), we get a palindrome (446360063644).

The spelling of 135220041113 in words is "one hundred thirty-five billion, two hundred twenty million, forty-one thousand, one hundred thirteen".