134125410121 has 4 divisors (see below), whose sum is σ = 134701055892. Its totient is φ = 133549764352.

The previous prime is 134125410101. The next prime is 134125410127. The reversal of 134125410121 is 121014521431.

It is a happy number.

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 77261761600 + 56863648521 = 277960^2 + 238461^2 .

It is a cyclic number.

It is not a de Polignac number, because 134125410121 - 2²⁹ = 133588539209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134125410127) 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, 287822536 + ... + 287823001.

It is an arithmetic number, because the mean of its divisors is an integer number (33675263973).

Almost surely, 2^134125410121 is an apocalyptic number.

It is an amenable number.

134125410121 is a deficient number, since it is larger than the sum of its proper divisors (575645771).

134125410121 is an equidigital number, since it uses as much as digits as its factorization.

134125410121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575645770.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 134125410121 its reverse (121014521431), we get a palindrome (255139931552).

The spelling of 134125410121 in words is "one hundred thirty-four billion, one hundred twenty-five million, four hundred ten thousand, one hundred twenty-one".