10403323985 has 8 divisors (see below), whose sum is σ = 12486854376. Its totient is φ = 8320748800.

The previous prime is 10403323949. The next prime is 10403324017. The reversal of 10403323985 is 58932330401.

It can be written as a sum of positive squares in 4 ways, for example, as 1931778304 + 8471545681 = 43952^2 + 92041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10403323985 - 2⁶ = 10403323921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214616 + ... + 258585.

It is an arithmetic number, because the mean of its divisors is an integer number (1560856797).

Almost surely, 2^10403323985 is an apocalyptic number.

It is an amenable number.

10403323985 is a deficient number, since it is larger than the sum of its proper divisors (2083530391).

10403323985 is an equidigital number, since it uses as much as digits as its factorization.

10403323985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477603.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 10403323985 in words is "ten billion, four hundred three million, three hundred twenty-three thousand, nine hundred eighty-five".