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12323103221 = 111386175547
BaseRepresentation
bin10110111101000001…
…11010000111110101
31011210211002111122102
423132200322013311
5200214203300341
65354450511445
7614243435432
oct133640720765
934724074572
1012323103221
115254085930
12247ab95585
131215091370
1484c8c6b89
154c1ce4c9b
hex2de83a1f5

12323103221 has 8 divisors (see below), whose sum is σ = 14477492064. Its totient is φ = 10341065520.

The previous prime is 12323103187. The next prime is 12323103227. The reversal of 12323103221 is 12230132321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12323103221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12323103193 and 12323103202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323103227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43087631 + ... + 43087916.

It is an arithmetic number, because the mean of its divisors is an integer number (1809686508).

Almost surely, 212323103221 is an apocalyptic number.

12323103221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12323103221 is a deficient number, since it is larger than the sum of its proper divisors (2154388843).

12323103221 is a wasteful number, since it uses less digits than its factorization.

12323103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86175571.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12323103221 its reverse (12230132321), we get a palindrome (24553235542).

The spelling of 12323103221 in words is "twelve billion, three hundred twenty-three million, one hundred three thousand, two hundred twenty-one".

Divisors: 1 11 13 143 86175547 947931017 1120282111 12323103221