1130020121 has 2 divisors, whose sum is σ = 1130020122. Its totient is φ = 1130020120.

The previous prime is 1130020109. The next prime is 1130020169. The reversal of 1130020121 is 1210200311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058786521 + 71233600 = 32539^2 + 8440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130020121 - 2¹⁸ = 1129757977 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 (1130022121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565010060 + 565010061.

It is an arithmetic number, because the mean of its divisors is an integer number (565010061).

Almost surely, 2^1130020121 is an apocalyptic number.

It is an amenable number.

1130020121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130020121 is an equidigital number, since it uses as much as digits as its factorization.

1130020121 is an evil number, because the sum of its binary digits is even.

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

The square root of 1130020121 is about 33615.7719084361. The cubic root of 1130020121 is about 1041.5866194645.

Adding to 1130020121 its reverse (1210200311), we get a palindrome (2340220432).

The spelling of 1130020121 in words is "one billion, one hundred thirty million, twenty thousand, one hundred twenty-one".