1311000553 has 8 divisors (see below), whose sum is σ = 1323219968. Its totient is φ = 1298811024.

The previous prime is 1311000533. The next prime is 1311000599. The reversal of 1311000553 is 3550001131.

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 1311000553 - 2²⁹ = 774129641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311000553.

It is not an unprimeable number, because it can be changed into a prime (1311000533) 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, 86050 + ... + 100132.

It is an arithmetic number, because the mean of its divisors is an integer number (165402496).

Almost surely, 2^1311000553 is an apocalyptic number.

It is an amenable number.

1311000553 is a deficient number, since it is larger than the sum of its proper divisors (12219415).

1311000553 is a wasteful number, since it uses less digits than its factorization.

1311000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14943.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 1311000553 is about 36207.7416169526. The cubic root of 1311000553 is about 1094.4626828030.

Adding to 1311000553 its reverse (3550001131), we get a palindrome (4861001684).

The spelling of 1311000553 in words is "one billion, three hundred eleven million, five hundred fifty-three", and thus it is an aban number.