1155030304081 has 2 divisors, whose sum is σ = 1155030304082. Its totient is φ = 1155030304080.

The previous prime is 1155030303971. The next prime is 1155030304151. The reversal of 1155030304081 is 1804030305511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980773315600 + 174256988481 = 990340^2 + 417441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155030304081 - 2⁹ = 1155030303569 is a prime.

It is a super-2 number, since 2×1155030304081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1155030394081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577515152040 + 577515152041.

It is an arithmetic number, because the mean of its divisors is an integer number (577515152041).

Almost surely, 2^{1155030304081} is an apocalyptic number.

It is an amenable number.

1155030304081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155030304081 is an equidigital number, since it uses as much as digits as its factorization.

1155030304081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 1155030304081 its reverse (1804030305511), we get a palindrome (2959060609592).

The spelling of 1155030304081 in words is "one trillion, one hundred fifty-five billion, thirty million, three hundred four thousand, eighty-one".