1081417121 has 2 divisors, whose sum is σ = 1081417122. Its totient is φ = 1081417120.

The previous prime is 1081417097. The next prime is 1081417123. The reversal of 1081417121 is 1217141801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982195600 + 99221521 = 31340^2 + 9961^2 .

It is an emirp because it is prime and its reverse (1217141801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1081417121 - 2¹⁰ = 1081416097 is a prime.

Together with 1081417123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1081417123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540708560 + 540708561.

It is an arithmetic number, because the mean of its divisors is an integer number (540708561).

Almost surely, 2^1081417121 is an apocalyptic number.

It is an amenable number.

1081417121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081417121 is an equidigital number, since it uses as much as digits as its factorization.

1081417121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 1081417121 is about 32884.9071915978. The cubic root of 1081417121 is about 1026.4341205449.

Adding to 1081417121 its reverse (1217141801), we get a palindrome (2298558922).

The spelling of 1081417121 in words is "one billion, eighty-one million, four hundred seventeen thousand, one hundred twenty-one".