4001223133 has 2 divisors, whose sum is σ = 4001223134. Its totient is φ = 4001223132.

The previous prime is 4001223113. The next prime is 4001223197. The reversal of 4001223133 is 3313221004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3479466169 + 521756964 = 58987^2 + 22842^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001223133 - 2⁵ = 4001223101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4001223133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4001223113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000611566 + 2000611567.

It is an arithmetic number, because the mean of its divisors is an integer number (2000611567).

Almost surely, 2^4001223133 is an apocalyptic number.

It is an amenable number.

4001223133 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001223133 is an equidigital number, since it uses as much as digits as its factorization.

4001223133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 4001223133 is about 63255.2221796746. Note that the first 3 decimals coincide. The cubic root of 4001223133 is about 1587.5628356966.

Adding to 4001223133 its reverse (3313221004), we get a palindrome (7314444137).

The spelling of 4001223133 in words is "four billion, one million, two hundred twenty-three thousand, one hundred thirty-three".