23431322 has 4 divisors (see below), whose sum is σ = 35146986. Its totient is φ = 11715660.

The previous prime is 23431301. The next prime is 23431327. The reversal of 23431322 is 22313432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22174681 + 1256641 = 4709^2 + 1121^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23431294 and 23431303.

It is not an unprimeable number, because it can be changed into a prime (23431327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857829 + ... + 5857832.

Almost surely, 2^23431322 is an apocalyptic number.

23431322 is a deficient number, since it is larger than the sum of its proper divisors (11715664).

23431322 is a wasteful number, since it uses less digits than its factorization.

23431322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11715663.

The product of its digits is 864, while the sum is 20.

The square root of 23431322 is about 4840.5910796100. The cubic root of 23431322 is about 286.1534133812.

Adding to 23431322 its reverse (22313432), we get a palindrome (45744754).

The spelling of 23431322 in words is "twenty-three million, four hundred thirty-one thousand, three hundred twenty-two".