102785585803 has 4 divisors (see below), whose sum is σ = 102989931408. Its totient is φ = 102581240200.

The previous prime is 102785585761. The next prime is 102785585809. The reversal of 102785585803 is 308585587201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308585587201 = 3271 ⋅94339831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102785585803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102785585809) 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, 102172048 + ... + 102173053.

It is an arithmetic number, because the mean of its divisors is an integer number (25747482852).

Almost surely, 2^102785585803 is an apocalyptic number.

102785585803 is a deficient number, since it is larger than the sum of its proper divisors (204345605).

102785585803 is an equidigital number, since it uses as much as digits as its factorization.

102785585803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204345604.

The product of its (nonzero) digits is 2688000, while the sum is 52.

The spelling of 102785585803 in words is "one hundred two billion, seven hundred eighty-five million, five hundred eighty-five thousand, eight hundred three".