1020873361 has 4 divisors (see below), whose sum is σ = 1024156224. Its totient is φ = 1017590500.

The previous prime is 1020873353. The next prime is 1020873367. The reversal of 1020873361 is 1633780201.

1020873361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1633780201 = 22637 ⋅72173.

It is a cyclic number.

It is not a de Polignac number, because 1020873361 - 2³ = 1020873353 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020873367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640965 + ... + 1641586.

It is an arithmetic number, because the mean of its divisors is an integer number (256039056).

Almost surely, 2^1020873361 is an apocalyptic number.

It is an amenable number.

1020873361 is a deficient number, since it is larger than the sum of its proper divisors (3282863).

1020873361 is an equidigital number, since it uses as much as digits as its factorization.

1020873361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282862.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1020873361 is about 31951.1089165932. The cubic root of 1020873361 is about 1006.9099298924.

The spelling of 1020873361 in words is "one billion, twenty million, eight hundred seventy-three thousand, three hundred sixty-one".