31232032210213 has 2 divisors, whose sum is σ = 31232032210214. Its totient is φ = 31232032210212.

The previous prime is 31232032210199. The next prime is 31232032210237. The reversal of 31232032210213 is 31201223023213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17707415488324 + 13524616721889 = 4208018^2 + 3677583^2 .

It is a cyclic number.

It is not a de Polignac number, because 31232032210213 - 2⁴¹ = 29033008954661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31232032210243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616016105106 + 15616016105107.

It is an arithmetic number, because the mean of its divisors is an integer number (15616016105107).

Almost surely, 2^{31232032210213} is an apocalyptic number.

It is an amenable number.

31232032210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232032210213 is an equidigital number, since it uses as much as digits as its factorization.

31232032210213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31232032210213 its reverse (31201223023213), we get a palindrome (62433255233426).

The spelling of 31232032210213 in words is "thirty-one trillion, two hundred thirty-two billion, thirty-two million, two hundred ten thousand, two hundred thirteen".