20000311213 has 2 divisors, whose sum is σ = 20000311214. Its totient is φ = 20000311212.

The previous prime is 20000311211. The next prime is 20000311223. The reversal of 20000311213 is 31211300002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17802764329 + 2197546884 = 133427^2 + 46878^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000311213 - 2¹ = 20000311211 is a prime.

Together with 20000311211, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20000311193 and 20000311202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000311211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000155606 + 10000155607.

It is an arithmetic number, because the mean of its divisors is an integer number (10000155607).

Almost surely, 2^20000311213 is an apocalyptic number.

It is an amenable number.

20000311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000311213 is an equidigital number, since it uses as much as digits as its factorization.

20000311213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20000311213 its reverse (31211300002), we get a palindrome (51211611215).

The spelling of 20000311213 in words is "twenty billion, three hundred eleven thousand, two hundred thirteen".