1105121417 has 2 divisors, whose sum is σ = 1105121418. Its totient is φ = 1105121416.

The previous prime is 1105121393. The next prime is 1105121419. The reversal of 1105121417 is 7141215011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741799696 + 363321721 = 27236^2 + 19061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105121417 - 2⁸ = 1105121161 is a prime.

Together with 1105121419, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1105121392 and 1105121401.

It is not a weakly prime, because it can be changed into another prime (1105121419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552560708 + 552560709.

It is an arithmetic number, because the mean of its divisors is an integer number (552560709).

Almost surely, 2^1105121417 is an apocalyptic number.

It is an amenable number.

1105121417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105121417 is an equidigital number, since it uses as much as digits as its factorization.

1105121417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 1105121417 is about 33243.3665112305. The cubic root of 1105121417 is about 1033.8796770824.

Adding to 1105121417 its reverse (7141215011), we get a palindrome (8246336428).

The spelling of 1105121417 in words is "one billion, one hundred five million, one hundred twenty-one thousand, four hundred seventeen".