1075518079121 has 2 divisors, whose sum is σ = 1075518079122. Its totient is φ = 1075518079120.

The previous prime is 1075518079117. The next prime is 1075518079151. The reversal of 1075518079121 is 1219708155701.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687340483600 + 388177595521 = 829060^2 + 623039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075518079121 - 2² = 1075518079117 is a prime.

It is a super-2 number, since 2×1075518079121² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1075518079151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537759039560 + 537759039561.

It is an arithmetic number, because the mean of its divisors is an integer number (537759039561).

Almost surely, 2^{1075518079121} is an apocalyptic number.

It is an amenable number.

1075518079121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075518079121 is an equidigital number, since it uses as much as digits as its factorization.

1075518079121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 47.

The spelling of 1075518079121 in words is "one trillion, seventy-five billion, five hundred eighteen million, seventy-nine thousand, one hundred twenty-one".