1121312033 has 2 divisors, whose sum is σ = 1121312034. Its totient is φ = 1121312032.

The previous prime is 1121312021. The next prime is 1121312039. The reversal of 1121312033 is 3302131211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072759009 + 48553024 = 32753^2 + 6968^2 .

It is an emirp because it is prime and its reverse (3302131211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121312033 - 2⁶ = 1121311969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121312039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656016 + 560656017.

It is an arithmetic number, because the mean of its divisors is an integer number (560656017).

Almost surely, 2^1121312033 is an apocalyptic number.

It is an amenable number.

1121312033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121312033 is an equidigital number, since it uses as much as digits as its factorization.

1121312033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1121312033 is about 33485.9975661470. The cubic root of 1121312033 is about 1038.9041813863.

Adding to 1121312033 its reverse (3302131211), we get a palindrome (4423443244).

The spelling of 1121312033 in words is "one billion, one hundred twenty-one million, three hundred twelve thousand, thirty-three".