213023100133 has 2 divisors, whose sum is σ = 213023100134. Its totient is φ = 213023100132.

The previous prime is 213023100097. The next prime is 213023100139. The reversal of 213023100133 is 331001320312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203683423969 + 9339676164 = 451313^2 + 96642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213023100133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213023100133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213023100139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106511550066 + 106511550067.

It is an arithmetic number, because the mean of its divisors is an integer number (106511550067).

Almost surely, 2^213023100133 is an apocalyptic number.

It is an amenable number.

213023100133 is a deficient number, since it is larger than the sum of its proper divisors (1).

213023100133 is an equidigital number, since it uses as much as digits as its factorization.

213023100133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213023100133 its reverse (331001320312), we get a palindrome (544024420445).

The spelling of 213023100133 in words is "two hundred thirteen billion, twenty-three million, one hundred thousand, one hundred thirty-three".