231032201020 has 12 divisors (see below), whose sum is σ = 485167622184. Its totient is φ = 92412880400.

The previous prime is 231032200981. The next prime is 231032201021. The reversal of 231032201020 is 20102230132.

It is a junction number, because it is equal to n+sod(n) for n = 231032200985 and 231032201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231032201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5775805006 + ... + 5775805045.

It is an arithmetic number, because the mean of its divisors is an integer number (40430635182).

Almost surely, 2^231032201020 is an apocalyptic number.

231032201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231032201020 is an abundant number, since it is smaller than the sum of its proper divisors (254135421164).

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

231032201020 is a wasteful number, since it uses less digits than its factorization.

231032201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11551610060 (or 11551610058 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 231032201020 its reverse (20102230132), we get a palindrome (251134431152).

The spelling of 231032201020 in words is "two hundred thirty-one billion, thirty-two million, two hundred one thousand, twenty".