135123410011 has 16 divisors (see below), whose sum is σ = 143746596000. Its totient is φ = 126575589888.

The previous prime is 135123409997. The next prime is 135123410021. The reversal of 135123410011 is 110014321531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 135123410011 - 2⁵ = 135123409979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135123410021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18382965 + ... + 18390313.

It is an arithmetic number, because the mean of its divisors is an integer number (8984162250).

Almost surely, 2^135123410011 is an apocalyptic number.

135123410011 is a deficient number, since it is larger than the sum of its proper divisors (8623185989).

135123410011 is a wasteful number, since it uses less digits than its factorization.

135123410011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 135123410011 its reverse (110014321531), we get a palindrome (245137731542).

The spelling of 135123410011 in words is "one hundred thirty-five billion, one hundred twenty-three million, four hundred ten thousand, eleven".