1243332133 has 2 divisors, whose sum is σ = 1243332134. Its totient is φ = 1243332132.

The previous prime is 1243332113. The next prime is 1243332173. The reversal of 1243332133 is 3312333421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 951537409 + 291794724 = 30847^2 + 17082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243332133 - 2¹⁷ = 1243201061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243332098 and 1243332107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243332113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621666066 + 621666067.

It is an arithmetic number, because the mean of its divisors is an integer number (621666067).

Almost surely, 2^1243332133 is an apocalyptic number.

It is an amenable number.

1243332133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243332133 is an equidigital number, since it uses as much as digits as its factorization.

1243332133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 25.

The square root of 1243332133 is about 35260.9150902242. The cubic root of 1243332133 is about 1075.2985312590.

Adding to 1243332133 its reverse (3312333421), we get a palindrome (4555665554).

The spelling of 1243332133 in words is "one billion, two hundred forty-three million, three hundred thirty-two thousand, one hundred thirty-three".