1121520041 has 2 divisors, whose sum is σ = 1121520042. Its totient is φ = 1121520040.

The previous prime is 1121520031. The next prime is 1121520067. The reversal of 1121520041 is 1400251211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 767290000 + 354230041 = 27700^2 + 18821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121520041 - 2⁶ = 1121519977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121520031) 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, 560760020 + 560760021.

It is an arithmetic number, because the mean of its divisors is an integer number (560760021).

Almost surely, 2^1121520041 is an apocalyptic number.

It is an amenable number.

1121520041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121520041 is an equidigital number, since it uses as much as digits as its factorization.

1121520041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1121520041 is about 33489.1033173479. The cubic root of 1121520041 is about 1038.9684177492.

Adding to 1121520041 its reverse (1400251211), we get a palindrome (2521771252).

The spelling of 1121520041 in words is "one billion, one hundred twenty-one million, five hundred twenty thousand, forty-one".