1011312241 has 2 divisors, whose sum is σ = 1011312242. Its totient is φ = 1011312240.

The previous prime is 1011312223. The next prime is 1011312257. The reversal of 1011312241 is 1422131101.

It is an a-pointer prime, because the next prime (1011312257) can be obtained adding 1011312241 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1004573025 + 6739216 = 31695^2 + 2596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011312241 - 2¹¹ = 1011310193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011322241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505656120 + 505656121.

It is an arithmetic number, because the mean of its divisors is an integer number (505656121).

Almost surely, 2^1011312241 is an apocalyptic number.

It is an amenable number.

1011312241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011312241 is an equidigital number, since it uses as much as digits as its factorization.

1011312241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1011312241 is about 31801.1358444946. The cubic root of 1011312241 is about 1003.7566171562.

Adding to 1011312241 its reverse (1422131101), we get a palindrome (2433443342).

The spelling of 1011312241 in words is "one billion, eleven million, three hundred twelve thousand, two hundred forty-one".