1311101 has 4 divisors (see below), whose sum is σ = 1430304. Its totient is φ = 1191900.

The previous prime is 1311097. The next prime is 1311103. The reversal of 1311101 is 1011131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1011131 = 11 ⋅91921.

It is a cyclic number.

It is not a de Polignac number, because 1311101 - 2² = 1311097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311103) 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, 59585 + ... + 59606.

It is an arithmetic number, because the mean of its divisors is an integer number (357576).

2^1311101 is an apocalyptic number.

1311101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311101 is a deficient number, since it is larger than the sum of its proper divisors (119203).

1311101 is a wasteful number, since it uses less digits than its factorization.

1311101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119202.

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

The square root of 1311101 is about 1145.0331872920. The cubic root of 1311101 is about 109.4490634148.

Adding to 1311101 its reverse (1011131), we get a palindrome (2322232).

The spelling of 1311101 in words is "one million, three hundred eleven thousand, one hundred one".