1121400017 has 2 divisors, whose sum is σ = 1121400018. Its totient is φ = 1121400016.

The previous prime is 1121400001. The next prime is 1121400031. The reversal of 1121400017 is 7100041211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635241616 + 486158401 = 25204^2 + 22049^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121400017 - 2⁴ = 1121400001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121399968 and 1121400004.

It is not a weakly prime, because it can be changed into another prime (1121400047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560700008 + 560700009.

It is an arithmetic number, because the mean of its divisors is an integer number (560700009).

Almost surely, 2^1121400017 is an apocalyptic number.

It is an amenable number.

1121400017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121400017 is an equidigital number, since it uses as much as digits as its factorization.

1121400017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1121400017 is about 33487.3112835295. The cubic root of 1121400017 is about 1038.9313532921.

Adding to 1121400017 its reverse (7100041211), we get a palindrome (8221441228).

The spelling of 1121400017 in words is "one billion, one hundred twenty-one million, four hundred thousand, seventeen".