1284055309403 has 16 divisors (see below), whose sum is σ = 1407269965824. Its totient is φ = 1166351114880.

The previous prime is 1284055309393. The next prime is 1284055309417. The reversal of 1284055309403 is 3049035504821.

It is a cyclic number.

It is not a de Polignac number, because 1284055309403 - 2¹⁰ = 1284055308379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284055309463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3126125 + ... + 3512942.

It is an arithmetic number, because the mean of its divisors is an integer number (87954372864).

Almost surely, 2^{1284055309403} is an apocalyptic number.

1284055309403 is a deficient number, since it is larger than the sum of its proper divisors (123214656421).

1284055309403 is a wasteful number, since it uses less digits than its factorization.

1284055309403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6639482.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1284055309403 in words is "one trillion, two hundred eighty-four billion, fifty-five million, three hundred nine thousand, four hundred three".