123104552045 has 4 divisors (see below), whose sum is σ = 147725462460. Its totient is φ = 98483641632.

The previous prime is 123104551939. The next prime is 123104552047. The reversal of 123104552045 is 540255401321.

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 67734226564 + 55370325481 = 260258^2 + 235309^2 .

It is a cyclic number.

It is not a de Polignac number, because 123104552045 - 2⁸ = 123104551789 is a prime.

It is a super-2 number, since 2×123104552045² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123104552047) 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 3 ways as a sum of consecutive naturals, for example, 12310455200 + ... + 12310455209.

It is an arithmetic number, because the mean of its divisors is an integer number (36931365615).

Almost surely, 2^123104552045 is an apocalyptic number.

It is an amenable number.

123104552045 is a deficient number, since it is larger than the sum of its proper divisors (24620910415).

123104552045 is an equidigital number, since it uses as much as digits as its factorization.

123104552045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24620910414.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 123104552045 its reverse (540255401321), we get a palindrome (663359953366).

The spelling of 123104552045 in words is "one hundred twenty-three billion, one hundred four million, five hundred fifty-two thousand, forty-five".