173323326403 has 16 divisors (see below), whose sum is σ = 188686080000. Its totient is φ = 158673071232.

The previous prime is 173323326391. The next prime is 173323326443. The reversal of 173323326403 is 304623323371.

It is a cyclic number.

It is not a de Polignac number, because 173323326403 - 2²¹ = 173321229251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173323326443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157878 + ... + 1298971.

It is an arithmetic number, because the mean of its divisors is an integer number (11792880000).

Almost surely, 2^173323326403 is an apocalyptic number.

173323326403 is a deficient number, since it is larger than the sum of its proper divisors (15362753597).

173323326403 is a wasteful number, since it uses less digits than its factorization.

173323326403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456994.

The product of its (nonzero) digits is 163296, while the sum is 37.

Adding to 173323326403 its reverse (304623323371), we get a palindrome (477946649774).

The spelling of 173323326403 in words is "one hundred seventy-three billion, three hundred twenty-three million, three hundred twenty-six thousand, four hundred three".