1313033111213 has 2 divisors, whose sum is σ = 1313033111214. Its totient is φ = 1313033111212.

The previous prime is 1313033111209. The next prime is 1313033111239. The reversal of 1313033111213 is 3121113303131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1293637813924 + 19395297289 = 1137382^2 + 139267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313033111213 - 2² = 1313033111209 is a prime.

It is a super-2 number, since 2×1313033111213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313033111713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656516555606 + 656516555607.

It is an arithmetic number, because the mean of its divisors is an integer number (656516555607).

Almost surely, 2^{1313033111213} is an apocalyptic number.

It is an amenable number.

1313033111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313033111213 is an equidigital number, since it uses as much as digits as its factorization.

1313033111213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1313033111213 its reverse (3121113303131), we get a palindrome (4434146414344).

The spelling of 1313033111213 in words is "one trillion, three hundred thirteen billion, thirty-three million, one hundred eleven thousand, two hundred thirteen".