1204553351313 has 24 divisors (see below), whose sum is σ = 1983970228968. Its totient is φ = 697659858432.

The previous prime is 1204553351303. The next prime is 1204553351329. The reversal of 1204553351313 is 3131533554021.

1204553351313 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 5 + 5 + 335 + 1 + 313 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 209523161169 + 995030190144 = 457737^2 + 997512^2 .

It is not a de Polignac number, because 1204553351313 - 2²¹ = 1204551254161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1204553351303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302801770 + ... + 302805747.

It is an arithmetic number, because the mean of its divisors is an integer number (82665426207).

Almost surely, 2^{1204553351313} is an apocalyptic number.

1204553351313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1204553351313 is a deficient number, since it is larger than the sum of its proper divisors (779416877655).

1204553351313 is a wasteful number, since it uses less digits than its factorization.

1204553351313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605607553 (or 605607550 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 1204553351313 in words is "one trillion, two hundred four billion, five hundred fifty-three million, three hundred fifty-one thousand, three hundred thirteen".