134344520121 has 32 divisors (see below), whose sum is σ = 206764185600. Its totient is φ = 76003113600.

The previous prime is 134344520077. The next prime is 134344520129. The reversal of 134344520121 is 121025443431.

It is not a de Polignac number, because 134344520121 - 2⁷ = 134344519993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134344520129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 983821 + ... + 1112021.

It is an arithmetic number, because the mean of its divisors is an integer number (6461380800).

Almost surely, 2^134344520121 is an apocalyptic number.

It is an amenable number.

134344520121 is a deficient number, since it is larger than the sum of its proper divisors (72419665479).

134344520121 is a wasteful number, since it uses less digits than its factorization.

134344520121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128709.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 134344520121 its reverse (121025443431), we get a palindrome (255369963552).

The spelling of 134344520121 in words is "one hundred thirty-four billion, three hundred forty-four million, five hundred twenty thousand, one hundred twenty-one".