1151113241 has 2 divisors, whose sum is σ = 1151113242. Its totient is φ = 1151113240.

The previous prime is 1151113219. The next prime is 1151113247. The reversal of 1151113241 is 1423111511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 683299600 + 467813641 = 26140^2 + 21629^2 .

It is an emirp because it is prime and its reverse (1423111511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151113241 - 2¹⁴ = 1151096857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1151113247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575556620 + 575556621.

It is an arithmetic number, because the mean of its divisors is an integer number (575556621).

Almost surely, 2^1151113241 is an apocalyptic number.

It is an amenable number.

1151113241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151113241 is an equidigital number, since it uses as much as digits as its factorization.

1151113241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 20.

The square root of 1151113241 is about 33928.0597883227. The cubic root of 1151113241 is about 1048.0275110900.

Adding to 1151113241 its reverse (1423111511), we get a palindrome (2574224752).

The spelling of 1151113241 in words is "one billion, one hundred fifty-one million, one hundred thirteen thousand, two hundred forty-one".