1313553603121 has 8 divisors (see below), whose sum is σ = 1366131701120. Its totient is φ = 1261874276208.

The previous prime is 1313553603101. The next prime is 1313553603149. The reversal of 1313553603121 is 1213063553131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313553603121 - 2⁷ = 1313553602993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313553603101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224689791 + ... + 224695636.

It is an arithmetic number, because the mean of its divisors is an integer number (170766462640).

Almost surely, 2^{1313553603121} is an apocalyptic number.

It is an amenable number.

1313553603121 is a deficient number, since it is larger than the sum of its proper divisors (52578097999).

1313553603121 is an equidigital number, since it uses as much as digits as its factorization.

1313553603121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449385543.

The product of its (nonzero) digits is 24300, while the sum is 34.

The spelling of 1313553603121 in words is "one trillion, three hundred thirteen billion, five hundred fifty-three million, six hundred three thousand, one hundred twenty-one".