231022343020 has 48 divisors (see below), whose sum is σ = 554879582208. Its totient is φ = 79146809280.

The previous prime is 231022342987. The next prime is 231022343021. The reversal of 231022343020 is 20343220132.

It is a junction number, because it is equal to n+sod(n) for n = 231022342982 and 231022343000.

It is not an unprimeable number, because it can be changed into a prime (231022343021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450796 + ... + 815635.

It is an arithmetic number, because the mean of its divisors is an integer number (11559991296).

Almost surely, 2^231022343020 is an apocalyptic number.

231022343020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231022343020 is an abundant number, since it is smaller than the sum of its proper divisors (323857239188).

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

231022343020 is a wasteful number, since it uses less digits than its factorization.

231022343020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267750 (or 1267748 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 231022343020 its reverse (20343220132), we get a palindrome (251365563152).

The spelling of 231022343020 in words is "two hundred thirty-one billion, twenty-two million, three hundred forty-three thousand, twenty".