4020403230331 has 2 divisors, whose sum is σ = 4020403230332. Its totient is φ = 4020403230330.

The previous prime is 4020403230301. The next prime is 4020403230343. The reversal of 4020403230331 is 1330323040204.

4020403230331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4020403230331 - 2⁵ = 4020403230299 is a prime.

It is a super-2 number, since 2×4020403230331² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4020403230296 and 4020403230305.

It is not a weakly prime, because it can be changed into another prime (4020403230301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010201615165 + 2010201615166.

It is an arithmetic number, because the mean of its divisors is an integer number (2010201615166).

Almost surely, 2^{4020403230331} is an apocalyptic number.

4020403230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020403230331 is an equidigital number, since it uses as much as digits as its factorization.

4020403230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 4020403230331 its reverse (1330323040204), we get a palindrome (5350726270535).

The spelling of 4020403230331 in words is "four trillion, twenty billion, four hundred three million, two hundred thirty thousand, three hundred thirty-one".