231321360 has 40 divisors (see below), whose sum is σ = 717096960. Its totient is φ = 61685632.

The previous prime is 231321301. The next prime is 231321367. The reversal of 231321360 is 63123132.

231321360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (231321367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481680 + ... + 482159.

It is an arithmetic number, because the mean of its divisors is an integer number (17927424).

Almost surely, 2^231321360 is an apocalyptic number.

231321360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231321360 is an abundant number, since it is smaller than the sum of its proper divisors (485775600).

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

231321360 is a wasteful number, since it uses less digits than its factorization.

231321360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963855 (or 963849 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 231321360 is about 15209.2524471126. The cubic root of 231321360 is about 613.8636428978.

Adding to 231321360 its reverse (63123132), we get a palindrome (294444492).

The spelling of 231321360 in words is "two hundred thirty-one million, three hundred twenty-one thousand, three hundred sixty".