1120745756321 has 2 divisors, whose sum is σ = 1120745756322. Its totient is φ = 1120745756320.

The previous prime is 1120745756293. The next prime is 1120745756353. The reversal of 1120745756321 is 1236575470211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848093646400 + 272652109921 = 920920^2 + 522161^2 .

It is an emirp because it is prime and its reverse (1236575470211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120745756321 - 2³⁰ = 1119672014497 is a prime.

It is a super-2 number, since 2×1120745756321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1120745756621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560372878160 + 560372878161.

It is an arithmetic number, because the mean of its divisors is an integer number (560372878161).

Almost surely, 2^{1120745756321} is an apocalyptic number.

It is an amenable number.

1120745756321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120745756321 is an equidigital number, since it uses as much as digits as its factorization.

1120745756321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 1120745756321 in words is "one trillion, one hundred twenty billion, seven hundred forty-five million, seven hundred fifty-six thousand, three hundred twenty-one".