123134340011 has 8 divisors (see below), whose sum is σ = 129425878944. Its totient is φ = 116920957120.

The previous prime is 123134339989. The next prime is 123134340019. The reversal of 123134340011 is 110043431321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123134340011 - 2⁶ = 123134339947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (123134340019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19535780 + ... + 19542081.

It is an arithmetic number, because the mean of its divisors is an integer number (16178234868).

Almost surely, 2^123134340011 is an apocalyptic number.

123134340011 is a deficient number, since it is larger than the sum of its proper divisors (6291538933).

123134340011 is a wasteful number, since it uses less digits than its factorization.

123134340011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39078021.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123134340011 its reverse (110043431321), we get a palindrome (233177771332).

The spelling of 123134340011 in words is "one hundred twenty-three billion, one hundred thirty-four million, three hundred forty thousand, eleven".