123320004403445 has 96 divisors (see below), whose sum is σ = 163965895984800. Its totient is φ = 88943902654464.

The previous prime is 123320004403429. The next prime is 123320004403481. The reversal of 123320004403445 is 544304400023321.

It can be written as a sum of positive squares in 48 ways, for example, as 91279355484529 + 32040648918916 = 9554023^2 + 5660446^2 .

It is not a de Polignac number, because 123320004403445 - 2⁴ = 123320004403429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1108648091 + ... + 1108759319.

It is an arithmetic number, because the mean of its divisors is an integer number (1707978083175).

Almost surely, 2^{123320004403445} is an apocalyptic number.

It is an amenable number.

123320004403445 is a deficient number, since it is larger than the sum of its proper divisors (40645891581355).

123320004403445 is a wasteful number, since it uses less digits than its factorization.

123320004403445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111627 (or 111610 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 123320004403445 its reverse (544304400023321), we get a palindrome (667624404426766).

The spelling of 123320004403445 in words is "one hundred twenty-three trillion, three hundred twenty billion, four million, four hundred three thousand, four hundred forty-five".