1220333332313 has 2 divisors, whose sum is σ = 1220333332314. Its totient is φ = 1220333332312.

The previous prime is 1220333332303. The next prime is 1220333332319. The reversal of 1220333332313 is 3132333330221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 744127066384 + 476206265929 = 862628^2 + 690077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220333332313 - 2¹⁰ = 1220333331289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220333332319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610166666156 + 610166666157.

It is an arithmetic number, because the mean of its divisors is an integer number (610166666157).

Almost surely, 2^{1220333332313} is an apocalyptic number.

It is an amenable number.

1220333332313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220333332313 is an equidigital number, since it uses as much as digits as its factorization.

1220333332313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 1220333332313 its reverse (3132333330221), we get a palindrome (4352666662534).

The spelling of 1220333332313 in words is "one trillion, two hundred twenty billion, three hundred thirty-three million, three hundred thirty-two thousand, three hundred thirteen".