1100001311 has 4 divisors (see below), whose sum is σ = 1105585272. Its totient is φ = 1094417352.

The previous prime is 1100001281. The next prime is 1100001313. The reversal of 1100001311 is 1131000011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100001311 - 2¹⁴ = 1099984927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791685 + ... + 2792078.

It is an arithmetic number, because the mean of its divisors is an integer number (276396318).

Almost surely, 2^1100001311 is an apocalyptic number.

1100001311 is a deficient number, since it is larger than the sum of its proper divisors (5583961).

1100001311 is an equidigital number, since it uses as much as digits as its factorization.

1100001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583960.

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 1100001311 is about 33166.2676676167. The cubic root of 1100001311 is about 1032.2805255529.

Adding to 1100001311 its reverse (1131000011), we get a palindrome (2231001322).

The spelling of 1100001311 in words is "one billion, one hundred million, one thousand, three hundred eleven".