1360520656321 has 2 divisors, whose sum is σ = 1360520656322. Its totient is φ = 1360520656320.

The previous prime is 1360520656307. The next prime is 1360520656381. The reversal of 1360520656321 is 1236560250631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983199166096 + 377321490225 = 991564^2 + 614265^2 .

It is a cyclic number.

It is not a de Polignac number, because 1360520656321 - 2²⁹ = 1359983785409 is a prime.

It is a super-2 number, since 2×1360520656321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1360520656381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680260328160 + 680260328161.

It is an arithmetic number, because the mean of its divisors is an integer number (680260328161).

Almost surely, 2^{1360520656321} is an apocalyptic number.

It is an amenable number.

1360520656321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1360520656321 is an equidigital number, since it uses as much as digits as its factorization.

1360520656321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 1360520656321 in words is "one trillion, three hundred sixty billion, five hundred twenty million, six hundred fifty-six thousand, three hundred twenty-one".