631302323 has 2 divisors, whose sum is σ = 631302324. Its totient is φ = 631302322.

The previous prime is 631302319. The next prime is 631302337. The reversal of 631302323 is 323203136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 631302323 - 2² = 631302319 is a prime.

It is not a weakly prime, because it can be changed into another prime (631302313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315651161 + 315651162.

It is an arithmetic number, because the mean of its divisors is an integer number (315651162).

Almost surely, 2^631302323 is an apocalyptic number.

631302323 is a deficient number, since it is larger than the sum of its proper divisors (1).

631302323 is an equidigital number, since it uses as much as digits as its factorization.

631302323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 631302323 is about 25125.7302978441. The cubic root of 631302323 is about 857.8521863626.

Adding to 631302323 its reverse (323203136), we get a palindrome (954505459).

The spelling of 631302323 in words is "six hundred thirty-one million, three hundred two thousand, three hundred twenty-three".