134121534521121 has 80 divisors (see below), whose sum is σ = 229462419472000. Its totient is φ = 76478316445440.

The previous prime is 134121534521113. The next prime is 134121534521131. The reversal of 134121534521121 is 121125435121431.

134121534521121 is a `hidden beast` number, since 1 + 3 + 4 + 1 + 2 + 1 + 5 + 3 + 4 + 521 + 121 = 666.

It is not a de Polignac number, because 134121534521121 - 2³ = 134121534521113 is a prime.

It is a super-2 number, since 2×134121534521121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134121534521111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 889932645 + ... + 890083341.

It is an arithmetic number, because the mean of its divisors is an integer number (2868280243400).

Almost surely, 2^{134121534521121} is an apocalyptic number.

It is an amenable number.

134121534521121 is a deficient number, since it is larger than the sum of its proper divisors (95340884950879).

134121534521121 is a wasteful number, since it uses less digits than its factorization.

134121534521121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154036 (or 154027 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

Adding to 134121534521121 its reverse (121125435121431), we get a palindrome (255246969642552).

The spelling of 134121534521121 in words is "one hundred thirty-four trillion, one hundred twenty-one billion, five hundred thirty-four million, five hundred twenty-one thousand, one hundred twenty-one".