1023305423603 has 4 divisors (see below), whose sum is σ = 1023316910928. Its totient is φ = 1023293936280.

The previous prime is 1023305423557. The next prime is 1023305423627. The reversal of 1023305423603 is 3063245033201.

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 1023305423603 - 2²² = 1023301229299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023305423603.

It is not an unprimeable number, because it can be changed into a prime (1023305423663) 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, 5608988 + ... + 5788553.

It is an arithmetic number, because the mean of its divisors is an integer number (255829227732).

Almost surely, 2^{1023305423603} is an apocalyptic number.

1023305423603 is a deficient number, since it is larger than the sum of its proper divisors (11487325).

1023305423603 is an equidigital number, since it uses as much as digits as its factorization.

1023305423603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487324.

The product of its (nonzero) digits is 38880, while the sum is 32.

The spelling of 1023305423603 in words is "one trillion, twenty-three billion, three hundred five million, four hundred twenty-three thousand, six hundred three".