1304128951903 has 12 divisors (see below), whose sum is σ = 1385444967192. Its totient is φ = 1227335753600.

The previous prime is 1304128951883. The next prime is 1304128951907. The reversal of 1304128951903 is 3091598214031.

It is not a de Polignac number, because 1304128951903 - 2³⁷ = 1166689998431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304128951907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4572576 + ... + 4849402.

It is an arithmetic number, because the mean of its divisors is an integer number (115453747266).

Almost surely, 2^{1304128951903} is an apocalyptic number.

1304128951903 is a deficient number, since it is larger than the sum of its proper divisors (81316015289).

1304128951903 is a wasteful number, since it uses less digits than its factorization.

1304128951903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293162 (or 293145 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 1304128951903 in words is "one trillion, three hundred four billion, one hundred twenty-eight million, nine hundred fifty-one thousand, nine hundred three".