1720142424105 has 64 divisors (see below), whose sum is σ = 3311179776000. Its totient is φ = 744912426240.

The previous prime is 1720142424103. The next prime is 1720142424137. The reversal of 1720142424105 is 5014242410271.

It is not a de Polignac number, because 1720142424105 - 2¹ = 1720142424103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1720142424103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49201171 + ... + 49236119.

It is an arithmetic number, because the mean of its divisors is an integer number (51737184000).

Almost surely, 2^{1720142424105} is an apocalyptic number.

1720142424105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1720142424105 is a deficient number, since it is larger than the sum of its proper divisors (1591037351895).

1720142424105 is a wasteful number, since it uses less digits than its factorization.

1720142424105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59654.

The product of its (nonzero) digits is 17920, while the sum is 33.

Adding to 1720142424105 its reverse (5014242410271), we get a palindrome (6734384834376).

The spelling of 1720142424105 in words is "one trillion, seven hundred twenty billion, one hundred forty-two million, four hundred twenty-four thousand, one hundred five".