1001223133 has 2 divisors, whose sum is σ = 1001223134. Its totient is φ = 1001223132.

The previous prime is 1001223131. The next prime is 1001223149. The reversal of 1001223133 is 3313221001.

It is an a-pointer prime, because the next prime (1001223149) can be obtained adding 1001223133 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 859779684 + 141443449 = 29322^2 + 11893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001223133 - 2¹ = 1001223131 is a prime.

Together with 1001223131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001223131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611566 + 500611567.

It is an arithmetic number, because the mean of its divisors is an integer number (500611567).

Almost surely, 2^1001223133 is an apocalyptic number.

It is an amenable number.

1001223133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001223133 is an equidigital number, since it uses as much as digits as its factorization.

1001223133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1001223133 is about 31642.1101224302. The cubic root of 1001223133 is about 1000.4075448846.

Adding to 1001223133 its reverse (3313221001), we get a palindrome (4314444134).

The spelling of 1001223133 in words is "one billion, one million, two hundred twenty-three thousand, one hundred thirty-three".