231322 has 32 divisors (see below), whose sum is σ = 451584. Its totient is φ = 86400.

The previous prime is 231317. The next prime is 231323. The reversal of 231322 is 223132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (231323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5622 + ... + 5662.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2²³¹³²² is an apocalyptic number.

231322 is a deficient number, since it is larger than the sum of its proper divisors (220262).

231322 is a wasteful number, since it uses less digits than its factorization.

231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94.

The product of its digits is 72, while the sum is 13.

The square root of 231322 is about 480.9594577509. The cubic root of 231322 is about 61.3864209026.

Adding to 231322 its reverse (223132), we get a palindrome (454454).

It can be divided in two parts, 23132 and 2, that multiplied together give a palindrome (46264).

The spelling of 231322 in words is "two hundred thirty-one thousand, three hundred twenty-two".