1720142326003 has 4 divisors (see below), whose sum is σ = 1720145437560. Its totient is φ = 1720139214448.

The previous prime is 1720142325997. The next prime is 1720142326033. The reversal of 1720142326003 is 3006232410271.

It is a happy number.

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 1720142326003 - 2¹³ = 1720142317811 is a prime.

It is a super-2 number, since 2×1720142326003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1720142326033) 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, 477373 + ... + 1915246.

It is an arithmetic number, because the mean of its divisors is an integer number (430036359390).

Almost surely, 2^{1720142326003} is an apocalyptic number.

1720142326003 is a deficient number, since it is larger than the sum of its proper divisors (3111557).

1720142326003 is an equidigital number, since it uses as much as digits as its factorization.

1720142326003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111556.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 1720142326003 its reverse (3006232410271), we get a palindrome (4726374736274).

The spelling of 1720142326003 in words is "one trillion, seven hundred twenty billion, one hundred forty-two million, three hundred twenty-six thousand, three".