2231361236213 has 2 divisors, whose sum is σ = 2231361236214. Its totient is φ = 2231361236212.

The previous prime is 2231361236189. The next prime is 2231361236231. The reversal of 2231361236213 is 3126321631322.

Together with next prime (2231361236231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1681215644689 + 550145591524 = 1296617^2 + 741718^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231361236213 - 2¹² = 2231361232117 is a prime.

It is a super-3 number, since 3×2231361236213³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231361236113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115680618106 + 1115680618107.

It is an arithmetic number, because the mean of its divisors is an integer number (1115680618107).

Almost surely, 2^{2231361236213} is an apocalyptic number.

It is an amenable number.

2231361236213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231361236213 is an equidigital number, since it uses as much as digits as its factorization.

2231361236213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 35.

Adding to 2231361236213 its reverse (3126321631322), we get a palindrome (5357682867535).

The spelling of 2231361236213 in words is "two trillion, two hundred thirty-one billion, three hundred sixty-one million, two hundred thirty-six thousand, two hundred thirteen".