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1321113 = 3440371
BaseRepresentation
bin101000010100010011001
32111010020010
411002202121
5314233423
644152133
714141433
oct5024231
92433203
101321113
11822632
12538649
13373431
14265653
151b1693
hex142899

1321113 has 4 divisors (see below), whose sum is σ = 1761488. Its totient is φ = 880740.

The previous prime is 1321109. The next prime is 1321139. The reversal of 1321113 is 3111231.

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 not a de Polignac number, because 1321113 - 22 = 1321109 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321163) 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, 220183 + ... + 220188.

It is an arithmetic number, because the mean of its divisors is an integer number (440372).

21321113 is an apocalyptic number.

It is an amenable number.

1321113 is a deficient number, since it is larger than the sum of its proper divisors (440375).

1321113 is an equidigital number, since it uses as much as digits as its factorization.

1321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440374.

The product of its digits is 18, while the sum is 12.

The square root of 1321113 is about 1149.3967983251. The cubic root of 1321113 is about 109.7269536483.

Adding to 1321113 its sum of digits (12), we get a triangular number (1321125 = T1625).

Adding to 1321113 its reverse (3111231), we get a palindrome (4432344).

The spelling of 1321113 in words is "one million, three hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 3 440371 1321113