20132311321 has 2 divisors, whose sum is σ = 20132311322. Its totient is φ = 20132311320.

The previous prime is 20132311313. The next prime is 20132311333. The reversal of 20132311321 is 12311323102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18971205696 + 1161105625 = 137736^2 + 34075^2 .

It is a cyclic number.

It is not a de Polignac number, because 20132311321 - 2³ = 20132311313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20132911321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066155660 + 10066155661.

It is an arithmetic number, because the mean of its divisors is an integer number (10066155661).

Almost surely, 2^20132311321 is an apocalyptic number.

It is an amenable number.

20132311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132311321 is an equidigital number, since it uses as much as digits as its factorization.

20132311321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20132311321 its reverse (12311323102), we get a palindrome (32443634423).

The spelling of 20132311321 in words is "twenty billion, one hundred thirty-two million, three hundred eleven thousand, three hundred twenty-one".