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1101313 = 4912243

1101313 has 4 divisors (see below), whose sum is σ = 1104048. Its totient is φ = 1098580.

The previous prime is 1101307. The next prime is 1101319. The reversal of 1101313 is 3131011.

Adding to 1101313 its reverse (3131011), we get a palindrome (4232324).

It can be divided in two parts, 11013 and 13, that added together give a triangular number (11026 = T148).

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.

It is an interprime number because it is at equal distance from previous prime (1101307) and next prime (1101319).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1101313 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 1101313.

It is not an unprimeable number, because it can be changed into a prime (1101319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631 + ... + 1612.

It is an arithmetic number, because the mean of its divisors is an integer number (276012).

21101313 is an apocalyptic number.

It is an amenable number.

1101313 is a deficient number, since it is larger than the sum of its proper divisors (2735).

1101313 is an equidigital number, since it uses as much as digits as its factorization.

1101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1101313 is about 1049.4346096828. The cubic root of 1101313 is about 103.2690674508.

The spelling of 1101313 in words is "one million, one hundred one thousand, three hundred thirteen".

Divisors: 1 491 2243 1101313