134343100123 has 4 divisors (see below), whose sum is σ = 136620101880. Its totient is φ = 132066098368.

The previous prime is 134343100103. The next prime is 134343100141. The reversal of 134343100123 is 321001343431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321001343431 = 19 ⋅16894807549.

It is a cyclic number.

It is not a de Polignac number, because 134343100123 - 2⁵ = 134343100091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134343100103) 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, 1138500790 + ... + 1138500907.

It is an arithmetic number, because the mean of its divisors is an integer number (34155025470).

Almost surely, 2^134343100123 is an apocalyptic number.

134343100123 is a deficient number, since it is larger than the sum of its proper divisors (2277001757).

134343100123 is an equidigital number, since it uses as much as digits as its factorization.

134343100123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277001756.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 134343100123 its reverse (321001343431), we get a palindrome (455344443554).

The spelling of 134343100123 in words is "one hundred thirty-four billion, three hundred forty-three million, one hundred thousand, one hundred twenty-three".