213112030133 has 2 divisors, whose sum is σ = 213112030134. Its totient is φ = 213112030132.

The previous prime is 213112030067. The next prime is 213112030171. The reversal of 213112030133 is 331030211312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204238013329 + 8874016804 = 451927^2 + 94202^2 .

It is a cyclic number.

It is not a de Polignac number, because 213112030133 - 2²⁰ = 213110981557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213112030193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556015066 + 106556015067.

It is an arithmetic number, because the mean of its divisors is an integer number (106556015067).

Almost surely, 2^213112030133 is an apocalyptic number.

It is an amenable number.

213112030133 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112030133 is an equidigital number, since it uses as much as digits as its factorization.

213112030133 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 20.

Adding to 213112030133 its reverse (331030211312), we get a palindrome (544142241445).

The spelling of 213112030133 in words is "two hundred thirteen billion, one hundred twelve million, thirty thousand, one hundred thirty-three".