123204360416 has 12 divisors (see below), whose sum is σ = 242558584632. Its totient is φ = 61602180192.

The previous prime is 123204360401. The next prime is 123204360427. The reversal of 123204360416 is 614063402321.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 3850136263 = 123204360416 / (1 + 2 + 3 + 2 + 0 + 4 + 3 + 6 + 0 + 4 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1925068100 + ... + 1925068163.

It is an arithmetic number, because the mean of its divisors is an integer number (20213215386).

Almost surely, 2^123204360416 is an apocalyptic number.

123204360416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123204360416 is a deficient number, since it is larger than the sum of its proper divisors (119354224216).

123204360416 is an equidigital number, since it uses as much as digits as its factorization.

123204360416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850136273 (or 3850136265 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 123204360416 its reverse (614063402321), we get a palindrome (737267762737).

The spelling of 123204360416 in words is "one hundred twenty-three billion, two hundred four million, three hundred sixty thousand, four hundred sixteen".