31323 has 8 divisors (see below), whose sum is σ = 42768. Its totient is φ = 20384.

The previous prime is 31321. The next prime is 31327. The reversal of 31323 is 32313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31323 - 2¹ = 31321 is a prime.

It is a super-2 number, since 2×31323² = 1962260658, which contains 22 as substring.

31323 is an undulating number in base 14.

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 31299 and 31308.

It is not an unprimeable number, because it can be changed into a prime (31321) 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, 61 + ... + 257.

It is an arithmetic number, because the mean of its divisors is an integer number (5346).

2³¹³²³ is an apocalyptic number.

31323 is a deficient number, since it is larger than the sum of its proper divisors (11445).

31323 is a wasteful number, since it uses less digits than its factorization.

31323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253.

The product of its digits is 54, while the sum is 12.

The square root of 31323 is about 176.9830500359. The cubic root of 31323 is about 31.5225336373.

Adding to 31323 its reverse (32313), we get a palindrome (63636).

Subtracting 31323 from its reverse (32313), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 3 and 1323, that multiplied together give a square (3969 = 63²).

The spelling of 31323 in words is "thirty-one thousand, three hundred twenty-three".