1311817899061 has 8 divisors (see below), whose sum is σ = 1404265370400. Its totient is φ = 1221710870160.

The previous prime is 1311817899053. The next prime is 1311817899097. The reversal of 1311817899061 is 1609987181131.

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 1311817899061 - 2³ = 1311817899053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311817898993 and 1311817899011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311817899461) 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, 585109450 + ... + 585111691.

It is an arithmetic number, because the mean of its divisors is an integer number (175533171300).

Almost surely, 2^{1311817899061} is an apocalyptic number.

It is an amenable number.

1311817899061 is a deficient number, since it is larger than the sum of its proper divisors (92447471339).

1311817899061 is a wasteful number, since it uses less digits than its factorization.

1311817899061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170221219.

The product of its (nonzero) digits is 653184, while the sum is 55.

The spelling of 1311817899061 in words is "one trillion, three hundred eleven billion, eight hundred seventeen million, eight hundred ninety-nine thousand, sixty-one".