231302322020 has 48 divisors (see below), whose sum is σ = 605591538048. Its totient is φ = 72094229760.

The previous prime is 231302322019. The next prime is 231302322061. The reversal of 231302322020 is 20223203132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 231302321983 and 231302322001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75096617 + ... + 75099696.

It is an arithmetic number, because the mean of its divisors is an integer number (12616490376).

Almost surely, 2^231302322020 is an apocalyptic number.

231302322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231302322020 is an abundant number, since it is smaller than the sum of its proper divisors (374289216028).

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

231302322020 is a wasteful number, since it uses less digits than its factorization.

231302322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150196340 (or 150196338 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 231302322020 its reverse (20223203132), we get a palindrome (251525525152).

The spelling of 231302322020 in words is "two hundred thirty-one billion, three hundred two million, three hundred twenty-two thousand, twenty".