231321030 has 16 divisors (see below), whose sum is σ = 555170544. Its totient is φ = 61685600.

The previous prime is 231321019. The next prime is 231321043. The reversal of 231321030 is 30123132.

231321030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855321 + ... + 3855380.

It is an arithmetic number, because the mean of its divisors is an integer number (34698159).

Almost surely, 2^231321030 is an apocalyptic number.

231321030 is an abundant number, since it is smaller than the sum of its proper divisors (323849514).

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

231321030 is a wasteful number, since it uses less digits than its factorization.

231321030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710711.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231321030 is about 15209.2415984493. The cubic root of 231321030 is about 613.8633509878.

Adding to 231321030 its reverse (30123132), we get a palindrome (261444162).

The spelling of 231321030 in words is "two hundred thirty-one million, three hundred twenty-one thousand, thirty".