1151104021 has 2 divisors, whose sum is σ = 1151104022. Its totient is φ = 1151104020.

The previous prime is 1151104007. The next prime is 1151104027. The reversal of 1151104021 is 1204011511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012194225 + 138909796 = 31815^2 + 11786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151104021 - 2⁷ = 1151103893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151103986 and 1151104004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151104027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575552010 + 575552011.

It is an arithmetic number, because the mean of its divisors is an integer number (575552011).

Almost surely, 2^1151104021 is an apocalyptic number.

It is an amenable number.

1151104021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151104021 is an equidigital number, since it uses as much as digits as its factorization.

1151104021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1151104021 is about 33927.9239123174. The cubic root of 1151104021 is about 1048.0247129756.

Adding to 1151104021 its reverse (1204011511), we get a palindrome (2355115532).

The spelling of 1151104021 in words is "one billion, one hundred fifty-one million, one hundred four thousand, twenty-one".