1331223103313 has 2 divisors, whose sum is σ = 1331223103314. Its totient is φ = 1331223103312.

The previous prime is 1331223103271. The next prime is 1331223103337. The reversal of 1331223103313 is 3133013221331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1302102363409 + 29120739904 = 1141097^2 + 170648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331223103313 - 2²⁸ = 1330954667857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331223103363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665611551656 + 665611551657.

It is an arithmetic number, because the mean of its divisors is an integer number (665611551657).

Almost surely, 2^{1331223103313} is an apocalyptic number.

It is an amenable number.

1331223103313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331223103313 is an equidigital number, since it uses as much as digits as its factorization.

1331223103313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1331223103313 its reverse (3133013221331), we get a palindrome (4464236324644).

The spelling of 1331223103313 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-three million, one hundred three thousand, three hundred thirteen".