213133122329 has 2 divisors, whose sum is σ = 213133122330. Its totient is φ = 213133122328.

The previous prime is 213133122289. The next prime is 213133122359. The reversal of 213133122329 is 923221331312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107946416704 + 105186705625 = 328552^2 + 324325^2 .

It is a cyclic number.

It is not a de Polignac number, because 213133122329 - 2⁸ = 213133122073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213133122295 and 213133122304.

It is not a weakly prime, because it can be changed into another prime (213133122359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106566561164 + 106566561165.

It is an arithmetic number, because the mean of its divisors is an integer number (106566561165).

Almost surely, 2^213133122329 is an apocalyptic number.

It is an amenable number.

213133122329 is a deficient number, since it is larger than the sum of its proper divisors (1).

213133122329 is an equidigital number, since it uses as much as digits as its factorization.

213133122329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 32.

The spelling of 213133122329 in words is "two hundred thirteen billion, one hundred thirty-three million, one hundred twenty-two thousand, three hundred twenty-nine".