1171304021453 has 2 divisors, whose sum is σ = 1171304021454. Its totient is φ = 1171304021452.

The previous prime is 1171304021449. The next prime is 1171304021477. The reversal of 1171304021453 is 3541204031711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134623344969 + 36680676484 = 1065187^2 + 191522^2 .

It is an emirp because it is prime and its reverse (3541204031711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1171304021453 - 2² = 1171304021449 is a prime.

It is a super-2 number, since 2×1171304021453² (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 (1171304021053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585652010726 + 585652010727.

It is an arithmetic number, because the mean of its divisors is an integer number (585652010727).

Almost surely, 2^{1171304021453} is an apocalyptic number.

It is an amenable number.

1171304021453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171304021453 is an equidigital number, since it uses as much as digits as its factorization.

1171304021453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 1171304021453 in words is "one trillion, one hundred seventy-one billion, three hundred four million, twenty-one thousand, four hundred fifty-three".