20100333311213 has 2 divisors, whose sum is σ = 20100333311214. Its totient is φ = 20100333311212.

The previous prime is 20100333311209. The next prime is 20100333311231. The reversal of 20100333311213 is 31211333300102.

Together with next prime (20100333311231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20038183818409 + 62149492804 = 4476403^2 + 249298^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100333311213 - 2² = 20100333311209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20100333311413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050166655606 + 10050166655607.

It is an arithmetic number, because the mean of its divisors is an integer number (10050166655607).

Almost surely, 2^{20100333311213} is an apocalyptic number.

It is an amenable number.

20100333311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100333311213 is an equidigital number, since it uses as much as digits as its factorization.

20100333311213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20100333311213 its reverse (31211333300102), we get a palindrome (51311666611315).

The spelling of 20100333311213 in words is "twenty trillion, one hundred billion, three hundred thirty-three million, three hundred eleven thousand, two hundred thirteen".