3123113312213 has 2 divisors, whose sum is σ = 3123113312214. Its totient is φ = 3123113312212.

The previous prime is 3123113312191. The next prime is 3123113312251. The reversal of 3123113312213 is 3122133113213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2669884104484 + 453229207729 = 1633978^2 + 673223^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123113312213 - 2⁸ = 3123113311957 is a prime.

It is a super-2 number, since 2×3123113312213² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123113372213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561556656106 + 1561556656107.

It is an arithmetic number, because the mean of its divisors is an integer number (1561556656107).

Almost surely, 2^{3123113312213} is an apocalyptic number.

It is an amenable number.

3123113312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123113312213 is an equidigital number, since it uses as much as digits as its factorization.

3123113312213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

Adding to 3123113312213 its reverse (3122133113213), we get a palindrome (6245246425426).

The spelling of 3123113312213 in words is "three trillion, one hundred twenty-three billion, one hundred thirteen million, three hundred twelve thousand, two hundred thirteen".