1021116241 has 2 divisors, whose sum is σ = 1021116242. Its totient is φ = 1021116240.

The previous prime is 1021116197. The next prime is 1021116263. The reversal of 1021116241 is 1426111201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799701841 + 221414400 = 28279^2 + 14880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021116241 - 2¹⁷ = 1020985169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021116281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510558120 + 510558121.

It is an arithmetic number, because the mean of its divisors is an integer number (510558121).

Almost surely, 2^1021116241 is an apocalyptic number.

It is an amenable number.

1021116241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021116241 is an equidigital number, since it uses as much as digits as its factorization.

1021116241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1021116241 is about 31954.9094976030. The cubic root of 1021116241 is about 1006.9897761956.

Adding to 1021116241 its reverse (1426111201), we get a palindrome (2447227442).

The spelling of 1021116241 in words is "one billion, twenty-one million, one hundred sixteen thousand, two hundred forty-one".