23231322 has 12 divisors (see below), whose sum is σ = 50334570. Its totient is φ = 7743768.

The previous prime is 23231321. The next prime is 23231323. The reversal of 23231322 is 22313232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23231321) and next prime (23231323).

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 962361 = 4719^2 + 981^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1290629 = 23231322 / (2 + 3 + 2 + 3 + 1 + 3 + 2 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23231295 and 23231304.

It is not an unprimeable number, because it can be changed into a prime (23231321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645297 + ... + 645332.

Almost surely, 2^23231322 is an apocalyptic number.

23231322 is an abundant number, since it is smaller than the sum of its proper divisors (27103248).

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

23231322 is a wasteful number, since it uses less digits than its factorization.

23231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290637 (or 1290634 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 23231322 is about 4819.8881729766. Note that the first 3 decimals coincide. The cubic root of 23231322 is about 285.3369237885.

Adding to 23231322 its reverse (22313232), we get a palindrome (45544554).

The spelling of 23231322 in words is "twenty-three million, two hundred thirty-one thousand, three hundred twenty-two".