20332233031213 has 2 divisors, whose sum is σ = 20332233031214. Its totient is φ = 20332233031212.

The previous prime is 20332233031199. The next prime is 20332233031217. The reversal of 20332233031213 is 31213033223302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17716337610084 + 2615895421129 = 4209078^2 + 1617373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332233031213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332233031217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166116515606 + 10166116515607.

It is an arithmetic number, because the mean of its divisors is an integer number (10166116515607).

Almost surely, 2^{20332233031213} is an apocalyptic number.

It is an amenable number.

20332233031213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332233031213 is an equidigital number, since it uses as much as digits as its factorization.

20332233031213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 20332233031213 its reverse (31213033223302), we get a palindrome (51545266254515).

The spelling of 20332233031213 in words is "twenty trillion, three hundred thirty-two billion, two hundred thirty-three million, thirty-one thousand, two hundred thirteen".