1130398121 has 2 divisors, whose sum is σ = 1130398122. Its totient is φ = 1130398120.

The previous prime is 1130398039. The next prime is 1130398189. The reversal of 1130398121 is 1218930311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684554896 + 445843225 = 26164^2 + 21115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130398121 - 2³⁰ = 56656297 is a prime.

It is a super-3 number, since 3×1130398121³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1130398021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565199060 + 565199061.

It is an arithmetic number, because the mean of its divisors is an integer number (565199061).

Almost surely, 2^1130398121 is an apocalyptic number.

It is an amenable number.

1130398121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130398121 is an equidigital number, since it uses as much as digits as its factorization.

1130398121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1130398121 is about 33621.3937991869. The cubic root of 1130398121 is about 1041.7027459660.

It can be divided in two parts, 113039 and 8121, that multiplied together give a palindrome (917989719).

The spelling of 1130398121 in words is "one billion, one hundred thirty million, three hundred ninety-eight thousand, one hundred twenty-one".