4020231320 has 32 divisors (see below), whose sum is σ = 10337738400. Its totient is φ = 1378364928.

The previous prime is 4020231317. The next prime is 4020231329. The reversal of 4020231320 is 231320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020231329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7178705 + ... + 7179264.

It is an arithmetic number, because the mean of its divisors is an integer number (323054325).

Almost surely, 2^4020231320 is an apocalyptic number.

4020231320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4020231320 is an abundant number, since it is smaller than the sum of its proper divisors (6317507080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4020231320 is a wasteful number, since it uses less digits than its factorization.

4020231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14357987 (or 14357983 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4020231320 is about 63405.2941007295. The cubic root of 4020231320 is about 1590.0728207883.

Adding to 4020231320 its reverse (231320204), we get a palindrome (4251551524).

The spelling of 4020231320 in words is "four billion, twenty million, two hundred thirty-one thousand, three hundred twenty".