1020985523 has 2 divisors, whose sum is σ = 1020985524. Its totient is φ = 1020985522.

The previous prime is 1020985499. The next prime is 1020985529. The reversal of 1020985523 is 3255890201.

1020985523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020985523 - 2⁸ = 1020985267 is a prime.

It is a super-2 number, since 2×1020985523² = 2084822876351167058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020985529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510492761 + 510492762.

It is an arithmetic number, because the mean of its divisors is an integer number (510492762).

Almost surely, 2^1020985523 is an apocalyptic number.

1020985523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020985523 is an equidigital number, since it uses as much as digits as its factorization.

1020985523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1020985523 is about 31952.8640813308. The cubic root of 1020985523 is about 1006.9468044941.

The spelling of 1020985523 in words is "one billion, twenty million, nine hundred eighty-five thousand, five hundred twenty-three".