1720141562423 has 4 divisors (see below), whose sum is σ = 1720946497440. Its totient is φ = 1719336627408.

The previous prime is 1720141562411. The next prime is 1720141562437. The reversal of 1720141562423 is 3242651410271.

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 1720141562423 - 2⁴⁰ = 620629934647 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 (1720141502423) 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, 402464303 + ... + 402468576.

It is an arithmetic number, because the mean of its divisors is an integer number (430236624360).

Almost surely, 2^{1720141562423} is an apocalyptic number.

1720141562423 is a deficient number, since it is larger than the sum of its proper divisors (804935017).

1720141562423 is an equidigital number, since it uses as much as digits as its factorization.

1720141562423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804935016.

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 1720141562423 its reverse (3242651410271), we get a palindrome (4962792972694).

The spelling of 1720141562423 in words is "one trillion, seven hundred twenty billion, one hundred forty-one million, five hundred sixty-two thousand, four hundred twenty-three".