1130200121 has 2 divisors, whose sum is σ = 1130200122. Its totient is φ = 1130200120.

The previous prime is 1130200091. The next prime is 1130200147. The reversal of 1130200121 is 1210020311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1097994496 + 32205625 = 33136^2 + 5675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1130200121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1130230121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565100060 + 565100061.

It is an arithmetic number, because the mean of its divisors is an integer number (565100061).

Almost surely, 2^1130200121 is an apocalyptic number.

It is an amenable number.

1130200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130200121 is an equidigital number, since it uses as much as digits as its factorization.

1130200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1130200121 is about 33618.4491165193. The cubic root of 1130200121 is about 1041.6419210278.

Adding to 1130200121 its reverse (1210020311), we get a palindrome (2340220432).

The spelling of 1130200121 in words is "one billion, one hundred thirty million, two hundred thousand, one hundred twenty-one".