20000113211213 has 2 divisors, whose sum is σ = 20000113211214. Its totient is φ = 20000113211212.

The previous prime is 20000113211173. The next prime is 20000113211233. The reversal of 20000113211213 is 31211231100002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10628108566084 + 9372004645129 = 3260078^2 + 3061373^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000113211213 - 2¹² = 20000113207117 is a prime.

It is a super-2 number, since 2×20000113211213² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20000113211191 and 20000113211200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000113211233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000056605606 + 10000056605607.

It is an arithmetic number, because the mean of its divisors is an integer number (10000056605607).

Almost surely, 2^{20000113211213} is an apocalyptic number.

It is an amenable number.

20000113211213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000113211213 is an equidigital number, since it uses as much as digits as its factorization.

20000113211213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20000113211213 its reverse (31211231100002), we get a palindrome (51211344311215).

The spelling of 20000113211213 in words is "twenty trillion, one hundred thirteen million, two hundred eleven thousand, two hundred thirteen".