213232321031 has 2 divisors, whose sum is σ = 213232321032. Its totient is φ = 213232321030.

The previous prime is 213232320941. The next prime is 213232321051. The reversal of 213232321031 is 130123232312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213232321031 - 2¹⁴ = 213232304647 is a prime.

It is a super-2 number, since 2×213232321031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213232320988 and 213232321006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232321051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616160515 + 106616160516.

It is an arithmetic number, because the mean of its divisors is an integer number (106616160516).

Almost surely, 2^213232321031 is an apocalyptic number.

213232321031 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232321031 is an equidigital number, since it uses as much as digits as its factorization.

213232321031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213232321031 its reverse (130123232312), we get a palindrome (343355553343).

The spelling of 213232321031 in words is "two hundred thirteen billion, two hundred thirty-two million, three hundred twenty-one thousand, thirty-one".