213112320133 has 2 divisors, whose sum is σ = 213112320134. Its totient is φ = 213112320132.

The previous prime is 213112320079. The next prime is 213112320143. The reversal of 213112320133 is 331023211312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148547034724 + 64565285409 = 385418^2 + 254097^2 .

It is a cyclic number.

It is not a de Polignac number, because 213112320133 - 2¹⁷ = 213112189061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213112320143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556160066 + 106556160067.

It is an arithmetic number, because the mean of its divisors is an integer number (106556160067).

Almost surely, 2^213112320133 is an apocalyptic number.

It is an amenable number.

213112320133 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112320133 is an equidigital number, since it uses as much as digits as its factorization.

213112320133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213112320133 its reverse (331023211312), we get a palindrome (544135531445).

The spelling of 213112320133 in words is "two hundred thirteen billion, one hundred twelve million, three hundred twenty thousand, one hundred thirty-three".