1311102 has 36 divisors (see below), whose sum is σ = 3083184. Its totient is φ = 402480.

The previous prime is 1311097. The next prime is 1311103. The reversal of 1311102 is 2011131.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 17 ways as a sum of consecutive naturals, for example, 2827 + ... + 3257.

It is an arithmetic number, because the mean of its divisors is an integer number (85644).

2^1311102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1541592).

1311102 is an abundant number, since it is smaller than the sum of its proper divisors (1772082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311102 is a wasteful number, since it uses less digits than its factorization.

1311102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1311102 is about 1145.0336239604. The cubic root of 1311102 is about 109.4490912410.

Adding to 1311102 its reverse (2011131), we get a palindrome (3322233).

The spelling of 1311102 in words is "one million, three hundred eleven thousand, one hundred two".