123533312245 has 24 divisors (see below), whose sum is σ = 172487245824. Its totient is φ = 84686537376.

The previous prime is 123533312239. The next prime is 123533312291. The reversal of 123533312245 is 542213335321.

It is not a de Polignac number, because 123533312245 - 2³ = 123533312237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123533312245.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 908364 + ... + 1035466.

It is an arithmetic number, because the mean of its divisors is an integer number (7186968576).

Almost surely, 2^123533312245 is an apocalyptic number.

It is an amenable number.

123533312245 is a deficient number, since it is larger than the sum of its proper divisors (48953933579).

123533312245 is a wasteful number, since it uses less digits than its factorization.

123533312245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131089 (or 131082 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

Adding to 123533312245 its reverse (542213335321), we get a palindrome (665746647566).

The spelling of 123533312245 in words is "one hundred twenty-three billion, five hundred thirty-three million, three hundred twelve thousand, two hundred forty-five".