1085981023 has 2 divisors, whose sum is σ = 1085981024. Its totient is φ = 1085981022.

The previous prime is 1085981021. The next prime is 1085981027. The reversal of 1085981023 is 3201895801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1085981023 - 2¹ = 1085981021 is a prime.

It is a super-2 number, since 2×1085981023² = 2358709564632253058, which contains 22 as substring.

Together with 1085981021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085981021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542990511 + 542990512.

It is an arithmetic number, because the mean of its divisors is an integer number (542990512).

Almost surely, 2^1085981023 is an apocalyptic number.

1085981023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085981023 is an equidigital number, since it uses as much as digits as its factorization.

1085981023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 1085981023 is about 32954.2261781399. The cubic root of 1085981023 is about 1027.8760464509.

The spelling of 1085981023 in words is "one billion, eighty-five million, nine hundred eighty-one thousand, twenty-three".