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11313313121 = 118389122599
BaseRepresentation
bin10101000100101001…
…10111010101100001
31002012102222212001002
422202110313111201
5141132202004441
65110335321345
7550232401115
oct124224672541
932172885032
1011313313121
114886085660
122238980255
1310b3b07026
1479474b745
1546332cb9b
hex2a2537561

11313313121 has 8 divisors (see below), whose sum is σ = 12343368000. Its totient is φ = 10283520240.

The previous prime is 11313313079. The next prime is 11313313129. The reversal of 11313313121 is 12131331311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11313313121 - 210 = 11313312097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11313313093 and 11313313102.

It is not an unprimeable number, because it can be changed into a prime (11313313129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30980 + ... + 153578.

It is an arithmetic number, because the mean of its divisors is an integer number (1542921000).

Almost surely, 211313313121 is an apocalyptic number.

11313313121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11313313121 is a deficient number, since it is larger than the sum of its proper divisors (1030054879).

11313313121 is a wasteful number, since it uses less digits than its factorization.

11313313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130999.

The product of its digits is 162, while the sum is 20.

Adding to 11313313121 its reverse (12131331311), we get a palindrome (23444644432).

The spelling of 11313313121 in words is "eleven billion, three hundred thirteen million, three hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 11 8389 92279 122599 1348589 1028483011 11313313121