231422333 has 2 divisors, whose sum is σ = 231422334. Its totient is φ = 231422332.

The previous prime is 231422329. The next prime is 231422341. The reversal of 231422333 is 333224132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185967769 + 45454564 = 13637^2 + 6742^2 .

It is a cyclic number.

It is not a de Polignac number, because 231422333 - 2² = 231422329 is a prime.

It is a super-2 number, since 2×231422333² = 107112592422325778, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231422299 and 231422308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231422353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115711166 + 115711167.

It is an arithmetic number, because the mean of its divisors is an integer number (115711167).

Almost surely, 2^231422333 is an apocalyptic number.

It is an amenable number.

231422333 is a deficient number, since it is larger than the sum of its proper divisors (1).

231422333 is an equidigital number, since it uses as much as digits as its factorization.

231422333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 23.

The square root of 231422333 is about 15212.5715446140. The cubic root of 231422333 is about 613.9529481499.

Adding to 231422333 its reverse (333224132), we get a palindrome (564646465).

The spelling of 231422333 in words is "two hundred thirty-one million, four hundred twenty-two thousand, three hundred thirty-three".