285040312103 has 4 divisors (see below), whose sum is σ = 292744104360. Its totient is φ = 277336519848.

The previous prime is 285040312099. The next prime is 285040312163. The reversal of 285040312103 is 301213040582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 285040312103 - 2² = 285040312099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285040312163) 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, 3851896073 + ... + 3851896146.

It is an arithmetic number, because the mean of its divisors is an integer number (73186026090).

Almost surely, 2^285040312103 is an apocalyptic number.

285040312103 is a deficient number, since it is larger than the sum of its proper divisors (7703792257).

285040312103 is an equidigital number, since it uses as much as digits as its factorization.

285040312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703792256.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 285040312103 its reverse (301213040582), we get a palindrome (586253352685).

The spelling of 285040312103 in words is "two hundred eighty-five billion, forty million, three hundred twelve thousand, one hundred three".