1720200130151 has 4 divisors (see below), whose sum is σ = 1720235832432. Its totient is φ = 1720164427872.

The previous prime is 1720200130141. The next prime is 1720200130163. The reversal of 1720200130151 is 1510310020271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1720200130151 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 (1720200130141) 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, 17778770 + ... + 17875263.

It is an arithmetic number, because the mean of its divisors is an integer number (430058958108).

Almost surely, 2^{1720200130151} is an apocalyptic number.

1720200130151 is a deficient number, since it is larger than the sum of its proper divisors (35702281).

1720200130151 is an equidigital number, since it uses as much as digits as its factorization.

1720200130151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35702280.

The product of its (nonzero) digits is 420, while the sum is 23.

The spelling of 1720200130151 in words is "one trillion, seven hundred twenty billion, two hundred million, one hundred thirty thousand, one hundred fifty-one".