5173517203121 has 4 divisors (see below), whose sum is σ = 5173607098992. Its totient is φ = 5173427307252.

The previous prime is 5173517203093. The next prime is 5173517203177. The reversal of 5173517203121 is 1213027153715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5173517203121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5173517403121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44861555 + ... + 44976728.

It is an arithmetic number, because the mean of its divisors is an integer number (1293401774748).

Almost surely, 2^{5173517203121} is an apocalyptic number.

It is an amenable number.

5173517203121 is a deficient number, since it is larger than the sum of its proper divisors (89895871).

5173517203121 is an equidigital number, since it uses as much as digits as its factorization.

5173517203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89895870.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 5173517203121 in words is "five trillion, one hundred seventy-three billion, five hundred seventeen million, two hundred three thousand, one hundred twenty-one".