1155321210233 has 2 divisors, whose sum is σ = 1155321210234. Its totient is φ = 1155321210232.

The previous prime is 1155321210157. The next prime is 1155321210257. The reversal of 1155321210233 is 3320121235511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1142607069184 + 12714141049 = 1068928^2 + 112757^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155321210233 - 2¹⁰ = 1155321209209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155321210196 and 1155321210205.

It is not a weakly prime, because it can be changed into another prime (1155321210283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577660605116 + 577660605117.

It is an arithmetic number, because the mean of its divisors is an integer number (577660605117).

Almost surely, 2^{1155321210233} is an apocalyptic number.

It is an amenable number.

1155321210233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155321210233 is an equidigital number, since it uses as much as digits as its factorization.

1155321210233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 1155321210233 its reverse (3320121235511), we get a palindrome (4475442445744).

The spelling of 1155321210233 in words is "one trillion, one hundred fifty-five billion, three hundred twenty-one million, two hundred ten thousand, two hundred thirty-three".