1311010205 has 8 divisors (see below), whose sum is σ = 1585600512. Its totient is φ = 1040549328.

The previous prime is 1311010177. The next prime is 1311010223. The reversal of 1311010205 is 5020101131.

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 1311010205 - 2¹⁰ = 1311009181 is a prime.

It is a super-2 number, since 2×1311010205² = 3437495515228284050, which contains 22 as substring.

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 1311010205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031657 + ... + 1032926.

It is an arithmetic number, because the mean of its divisors is an integer number (198200064).

Almost surely, 2^1311010205 is an apocalyptic number.

It is an amenable number.

1311010205 is a deficient number, since it is larger than the sum of its proper divisors (274590307).

1311010205 is a wasteful number, since it uses less digits than its factorization.

1311010205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064715.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1311010205 is about 36207.8749031202. The cubic root of 1311010205 is about 1094.4653687230.

Adding to 1311010205 its reverse (5020101131), we get a palindrome (6331111336).

The spelling of 1311010205 in words is "one billion, three hundred eleven million, ten thousand, two hundred five".