123534205033 has 4 divisors (see below), whose sum is σ = 124073655940. Its totient is φ = 122994754128.

The previous prime is 123534205019. The next prime is 123534205097. The reversal of 123534205033 is 330502435321.

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 72343785024 + 51190420009 = 268968^2 + 226253^2 .

It is a cyclic number.

It is not a de Polignac number, because 123534205033 - 2²⁹ = 122997334121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123534204986 and 123534205004.

It is not an unprimeable number, because it can be changed into a prime (123534205013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269725110 + ... + 269725567.

It is an arithmetic number, because the mean of its divisors is an integer number (31018413985).

Almost surely, 2^123534205033 is an apocalyptic number.

It is an amenable number.

123534205033 is a deficient number, since it is larger than the sum of its proper divisors (539450907).

123534205033 is an equidigital number, since it uses as much as digits as its factorization.

123534205033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539450906.

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 123534205033 in words is "one hundred twenty-three billion, five hundred thirty-four million, two hundred five thousand, thirty-three".