4020720307151 has 12 divisors (see below), whose sum is σ = 4139015999256. Its totient is φ = 3904924586640.

The previous prime is 4020720307061. The next prime is 4020720307217. The reversal of 4020720307151 is 1517030270204.

It is not a de Polignac number, because 4020720307151 - 2¹⁴ = 4020720290767 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 (4020720300151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5614520 + ... + 6290013.

It is an arithmetic number, because the mean of its divisors is an integer number (344917999938).

Almost surely, 2^{4020720307151} is an apocalyptic number.

4020720307151 is a deficient number, since it is larger than the sum of its proper divisors (118295692105).

4020720307151 is an equidigital number, since it uses as much as digits as its factorization.

4020720307151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11904742 (or 11904671 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

Adding to 4020720307151 its reverse (1517030270204), we get a palindrome (5537750577355).

The spelling of 4020720307151 in words is "four trillion, twenty billion, seven hundred twenty million, three hundred seven thousand, one hundred fifty-one".