123134451013 has 16 divisors (see below), whose sum is σ = 144249928704. Its totient is φ = 102903488640.

The previous prime is 123134450993. The next prime is 123134451043. The reversal of 123134451013 is 310154431321.

It is a cyclic number.

It is not a de Polignac number, because 123134451013 - 2²⁹ = 122597580101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123134451043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312831 + ... + 586627.

It is an arithmetic number, because the mean of its divisors is an integer number (9015620544).

Almost surely, 2^123134451013 is an apocalyptic number.

It is an amenable number.

123134451013 is a deficient number, since it is larger than the sum of its proper divisors (21115477691).

123134451013 is a wasteful number, since it uses less digits than its factorization.

123134451013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275412.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 123134451013 its reverse (310154431321), we get a palindrome (433288882334).

The spelling of 123134451013 in words is "one hundred twenty-three billion, one hundred thirty-four million, four hundred fifty-one thousand, thirteen".