1303355420403 has 4 divisors (see below), whose sum is σ = 1737807227208. Its totient is φ = 868903613600.

The previous prime is 1303355420363. The next prime is 1303355420407. The reversal of 1303355420403 is 3040245533031.

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 1303355420403 - 2¹⁴ = 1303355404019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1303355420407) 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, 217225903398 + ... + 217225903403.

It is an arithmetic number, because the mean of its divisors is an integer number (434451806802).

Almost surely, 2^{1303355420403} is an apocalyptic number.

1303355420403 is a deficient number, since it is larger than the sum of its proper divisors (434451806805).

1303355420403 is an equidigital number, since it uses as much as digits as its factorization.

1303355420403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434451806804.

The product of its (nonzero) digits is 64800, while the sum is 33.

The spelling of 1303355420403 in words is "one trillion, three hundred three billion, three hundred fifty-five million, four hundred twenty thousand, four hundred three".