135331551121 has 12 divisors (see below), whose sum is σ = 146859040128. Its totient is φ = 124651551024.

The previous prime is 135331551107. The next prime is 135331551139. The reversal of 135331551121 is 121155133531.

It is not a de Polignac number, because 135331551121 - 2¹⁵ = 135331518353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135331551101) 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 11 ways as a sum of consecutive naturals, for example, 786525 + ... + 943018.

It is an arithmetic number, because the mean of its divisors is an integer number (12238253344).

Almost surely, 2^135331551121 is an apocalyptic number.

It is an amenable number.

135331551121 is a deficient number, since it is larger than the sum of its proper divisors (11527489007).

135331551121 is a wasteful number, since it uses less digits than its factorization.

135331551121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730032 (or 1730019 counting only the distinct ones).

The product of its digits is 6750, while the sum is 31.

Adding to 135331551121 its reverse (121155133531), we get a palindrome (256486684652).

The spelling of 135331551121 in words is "one hundred thirty-five billion, three hundred thirty-one million, five hundred fifty-one thousand, one hundred twenty-one".