10280394403 has 4 divisors (see below), whose sum is σ = 10300126968. Its totient is φ = 10260661840.

The previous prime is 10280394347. The next prime is 10280394427. The reversal of 10280394403 is 30449308201.

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 10280394403 - 2⁹ = 10280393891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10280394473) 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, 9865501 + ... + 9866542.

It is an arithmetic number, because the mean of its divisors is an integer number (2575031742).

Almost surely, 2^10280394403 is an apocalyptic number.

10280394403 is a deficient number, since it is larger than the sum of its proper divisors (19732565).

10280394403 is an equidigital number, since it uses as much as digits as its factorization.

10280394403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732564.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 10280394403 in words is "ten billion, two hundred eighty million, three hundred ninety-four thousand, four hundred three".