133213313213 has 2 divisors, whose sum is σ = 133213313214. Its totient is φ = 133213313212.

The previous prime is 133213313201. The next prime is 133213313249. The reversal of 133213313213 is 312313312331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121575650329 + 11637662884 = 348677^2 + 107878^2 .

It is a cyclic number.

It is not a de Polignac number, because 133213313213 - 2⁴ = 133213313197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133213313263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66606656606 + 66606656607.

It is an arithmetic number, because the mean of its divisors is an integer number (66606656607).

Almost surely, 2^133213313213 is an apocalyptic number.

It is an amenable number.

133213313213 is a deficient number, since it is larger than the sum of its proper divisors (1).

133213313213 is an equidigital number, since it uses as much as digits as its factorization.

133213313213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 26.

Adding to 133213313213 its reverse (312313312331), we get a palindrome (445526625544).

The spelling of 133213313213 in words is "one hundred thirty-three billion, two hundred thirteen million, three hundred thirteen thousand, two hundred thirteen".