20332312313 has 2 divisors, whose sum is σ = 20332312314. Its totient is φ = 20332312312.

The previous prime is 20332312309. The next prime is 20332312361. The reversal of 20332312313 is 31321323302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18340743184 + 1991569129 = 135428^2 + 44627^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332312313 - 2² = 20332312309 is a prime.

It is not a weakly prime, because it can be changed into another prime (20332312213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166156156 + 10166156157.

It is an arithmetic number, because the mean of its divisors is an integer number (10166156157).

Almost surely, 2^20332312313 is an apocalyptic number.

It is an amenable number.

20332312313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332312313 is an equidigital number, since it uses as much as digits as its factorization.

20332312313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20332312313 its reverse (31321323302), we get a palindrome (51653635615).

The spelling of 20332312313 in words is "twenty billion, three hundred thirty-two million, three hundred twelve thousand, three hundred thirteen".