1720073167223 has 4 divisors (see below), whose sum is σ = 1766561631240. Its totient is φ = 1673584703208.

The previous prime is 1720073167199. The next prime is 1720073167283. The reversal of 1720073167223 is 3227613700271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1720073167223 - 2²⁴ = 1720056390007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720073167283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23244231953 + ... + 23244232026.

It is an arithmetic number, because the mean of its divisors is an integer number (441640407810).

Almost surely, 2^{1720073167223} is an apocalyptic number.

1720073167223 is a deficient number, since it is larger than the sum of its proper divisors (46488464017).

1720073167223 is an equidigital number, since it uses as much as digits as its factorization.

1720073167223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46488464016.

The product of its (nonzero) digits is 148176, while the sum is 41.

Adding to 1720073167223 its reverse (3227613700271), we get a palindrome (4947686867494).

The spelling of 1720073167223 in words is "one trillion, seven hundred twenty billion, seventy-three million, one hundred sixty-seven thousand, two hundred twenty-three".