12633331 has 2 divisors, whose sum is σ = 12633332. Its totient is φ = 12633330.

The previous prime is 12633323. The next prime is 12633343. The reversal of 12633331 is 13333621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12633331 - 2³ = 12633323 is a prime.

It is a super-2 number, since 2×12633331² = 319202104311122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12633311) 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, 6316665 + 6316666.

It is an arithmetic number, because the mean of its divisors is an integer number (6316666).

Almost surely, 2^12633331 is an apocalyptic number.

12633331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12633331 is an equidigital number, since it uses as much as digits as its factorization.

12633331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 22.

The square root of 12633331 is about 3554.3397417805. The cubic root of 12633331 is about 232.9016820112.

Adding to 12633331 its reverse (13333621), we get a palindrome (25966952).

The spelling of 12633331 in words is "twelve million, six hundred thirty-three thousand, three hundred thirty-one".