1603404261413 has 4 divisors (see below), whose sum is σ = 1605352505568. Its totient is φ = 1601456017260.

The previous prime is 1603404261409. The next prime is 1603404261439. The reversal of 1603404261413 is 3141624043061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1603404261413 - 2² = 1603404261409 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 (1603404261443) 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, 974120843 + ... + 974122488.

It is an arithmetic number, because the mean of its divisors is an integer number (401338126392).

Almost surely, 2^{1603404261413} is an apocalyptic number.

It is an amenable number.

1603404261413 is a deficient number, since it is larger than the sum of its proper divisors (1948244155).

1603404261413 is an equidigital number, since it uses as much as digits as its factorization.

1603404261413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948244154.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 1603404261413 in words is "one trillion, six hundred three billion, four hundred four million, two hundred sixty-one thousand, four hundred thirteen".