1230231321 has 40 divisors (see below), whose sum is σ = 2021567328. Its totient is φ = 745529400.

The previous prime is 1230231293. The next prime is 1230231377. The reversal of 1230231321 is 1231320321.

1230231321 is a `hidden beast` number, since 12 + 302 + 31 + 321 = 666.

It is not a de Polignac number, because 1230231321 - 2⁶ = 1230231257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230231294 and 1230231303.

It is not an unprimeable number, because it can be changed into a prime (1230231221) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 102106 + ... + 113516.

Almost surely, 2^1230231321 is an apocalyptic number.

1230231321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1230231321 is a deficient number, since it is larger than the sum of its proper divisors (791336007).

1230231321 is an equidigital number, since it uses as much as digits as its factorization.

1230231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11456 (or 11425 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230231321 is about 35074.6535406980. The cubic root of 1230231321 is about 1071.5084326529.

Adding to 1230231321 its reverse (1231320321), we get a palindrome (2461551642).

The spelling of 1230231321 in words is "one billion, two hundred thirty million, two hundred thirty-one thousand, three hundred twenty-one".