123345305073 has 12 divisors (see below), whose sum is σ = 185911764480. Its totient is φ = 78654977016.

The previous prime is 123345305023. The next prime is 123345305089. The reversal of 123345305073 is 370503543321.

123345305073 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 4 + 530 + 50 + 73 = 666.

It is not a de Polignac number, because 123345305073 - 2⁹ = 123345304561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123345305023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297935313 + ... + 297935726.

It is an arithmetic number, because the mean of its divisors is an integer number (15492647040).

Almost surely, 2^123345305073 is an apocalyptic number.

It is an amenable number.

123345305073 is a deficient number, since it is larger than the sum of its proper divisors (62566459407).

123345305073 is a wasteful number, since it uses less digits than its factorization.

123345305073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595871068 (or 595871065 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 36.

Adding to 123345305073 its reverse (370503543321), we get a palindrome (493848848394).

The spelling of 123345305073 in words is "one hundred twenty-three billion, three hundred forty-five million, three hundred five thousand, seventy-three".