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12303120110020 = 225615156005501
BaseRepresentation
bin1011001100001000101100…
…0110101001000111000100
31121120011111121001010211221
42303002023012221013010
53103033242222010040
642055550402010124
72406604533310465
oct263021306510704
947504447033757
1012303120110020
113a137a6618a23
121468516046944
136b3243a67a2c
1430768d270d6c
1516507449b74a
hexb308b1a91c4

12303120110020 has 12 divisors (see below), whose sum is σ = 25836552231084. Its totient is φ = 4921248044000.

The previous prime is 12303120110009. The next prime is 12303120110063. The reversal of 12303120110020 is 2001102130321.

It can be written as a sum of positive squares in 2 ways, for example, as 8950771502656 + 3352348607364 = 2991784^2 + 1830942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12303120109976 and 12303120110003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307578002731 + ... + 307578002770.

It is an arithmetic number, because the mean of its divisors is an integer number (2153046019257).

Almost surely, 212303120110020 is an apocalyptic number.

12303120110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303120110020 is an abundant number, since it is smaller than the sum of its proper divisors (13533432121064).

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

12303120110020 is a wasteful number, since it uses less digits than its factorization.

12303120110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615156005510 (or 615156005508 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12303120110020 its reverse (2001102130321), we get a palindrome (14304222240341).

The spelling of 12303120110020 in words is "twelve trillion, three hundred three billion, one hundred twenty million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 615156005501 1230312011002 2460624022004 3075780027505 6151560055010 12303120110020