1021104089 has 2 divisors, whose sum is σ = 1021104090. Its totient is φ = 1021104088.

The previous prime is 1021104013. The next prime is 1021104107. The reversal of 1021104089 is 9804011201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864654025 + 156450064 = 29405^2 + 12508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021104089 is a prime.

It is a super-3 number, since 3×1021104089³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1021100089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510552044 + 510552045.

It is an arithmetic number, because the mean of its divisors is an integer number (510552045).

Almost surely, 2^1021104089 is an apocalyptic number.

It is an amenable number.

1021104089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021104089 is an equidigital number, since it uses as much as digits as its factorization.

1021104089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 1021104089 is about 31954.7193541111. The cubic root of 1021104089 is about 1006.9857815514.

The spelling of 1021104089 in words is "one billion, twenty-one million, one hundred four thousand, eighty-nine".