1016442525121 has 2 divisors, whose sum is σ = 1016442525122. Its totient is φ = 1016442525120.

The previous prime is 1016442525061. The next prime is 1016442525157. The reversal of 1016442525121 is 1215252446101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982158299521 + 34284225600 = 991039^2 + 185160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016442525121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1016442525191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508221262560 + 508221262561.

It is an arithmetic number, because the mean of its divisors is an integer number (508221262561).

Almost surely, 2^{1016442525121} is an apocalyptic number.

It is an amenable number.

1016442525121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016442525121 is an equidigital number, since it uses as much as digits as its factorization.

1016442525121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 1016442525121 in words is "one trillion, sixteen billion, four hundred forty-two million, five hundred twenty-five thousand, one hundred twenty-one".