231033020 has 48 divisors (see below), whose sum is σ = 493432128. Its totient is φ = 90854400.

The previous prime is 231033013. The next prime is 231033031. The reversal of 231033020 is 20330132.

231033020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231032986 and 231033004.

It is a congruent number.

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, 340922 + ... + 341598.

It is an arithmetic number, because the mean of its divisors is an integer number (10279836).

Almost surely, 2^231033020 is an apocalyptic number.

231033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231033020 is an abundant number, since it is smaller than the sum of its proper divisors (262399108).

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

231033020 is a wasteful number, since it uses less digits than its factorization.

231033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 231033020 is about 15199.7703930027. The cubic root of 231033020 is about 613.6084783404.

Adding to 231033020 its reverse (20330132), we get a palindrome (251363152).

The spelling of 231033020 in words is "two hundred thirty-one million, thirty-three thousand, twenty".