1011505241 has 2 divisors, whose sum is σ = 1011505242. Its totient is φ = 1011505240.

The previous prime is 1011505213. The next prime is 1011505267. The reversal of 1011505241 is 1425051101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 797497600 + 214007641 = 28240^2 + 14629^2 .

It is an emirp because it is prime and its reverse (1425051101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011505241 - 2¹⁰ = 1011504217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011505291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505752620 + 505752621.

It is an arithmetic number, because the mean of its divisors is an integer number (505752621).

Almost surely, 2^1011505241 is an apocalyptic number.

It is an amenable number.

1011505241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011505241 is an equidigital number, since it uses as much as digits as its factorization.

1011505241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1011505241 is about 31804.1701825405. The cubic root of 1011505241 is about 1003.8204657867.

Adding to 1011505241 its reverse (1425051101), we get a palindrome (2436556342).

The spelling of 1011505241 in words is "one billion, eleven million, five hundred five thousand, two hundred forty-one".