213122232329 has 2 divisors, whose sum is σ = 213122232330. Its totient is φ = 213122232328.

The previous prime is 213122232287. The next prime is 213122232341. The reversal of 213122232329 is 923232221312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175862809600 + 37259422729 = 419360^2 + 193027^2 .

It is a cyclic number.

It is not a de Polignac number, because 213122232329 - 2⁸ = 213122232073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213122232295 and 213122232304.

It is not a weakly prime, because it can be changed into another prime (213121232329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561116164 + 106561116165.

It is an arithmetic number, because the mean of its divisors is an integer number (106561116165).

Almost surely, 2^213122232329 is an apocalyptic number.

It is an amenable number.

213122232329 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122232329 is an equidigital number, since it uses as much as digits as its factorization.

213122232329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The spelling of 213122232329 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred thirty-two thousand, three hundred twenty-nine".