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12310322303020 = 2257175172404329
BaseRepresentation
bin1011001100100011100001…
…1000110101000000101100
31121120212002112020110021211
42303020320120311000230
53103143020002144040
642103141202004204
72410251156036640
oct263107030650054
947525075213254
1012310322303020
113a16862013145
1214699a6046664
136b3b20c151b1
14307b739c0c20
151653469048ea
hexb323863502c

12310322303020 has 48 divisors (see below), whose sum is σ = 31282701387840. Its totient is φ = 3972406523904.

The previous prime is 12310322303009. The next prime is 12310322303033. The reversal of 12310322303020 is 2030322301321.

It is a super-2 number, since 2×123103223030202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12310322302982 and 12310322303000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586199785 + ... + 2586204544.

It is an arithmetic number, because the mean of its divisors is an integer number (651722945580).

Almost surely, 212310322303020 is an apocalyptic number.

12310322303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310322303020 is an abundant number, since it is smaller than the sum of its proper divisors (18972379084820).

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

12310322303020 is a wasteful number, since it uses less digits than its factorization.

12310322303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5172404362 (or 5172404360 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12310322303020 its reverse (2030322301321), we get a palindrome (14340644604341).

The spelling of 12310322303020 in words is "twelve trillion, three hundred ten billion, three hundred twenty-two million, three hundred three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 340 476 595 1190 2380 5172404329 10344808658 20689617316 25862021645 36206830303 51724043290 72413660606 87930873593 103448086580 144827321212 175861747186 181034151515 351723494372 362068303030 439654367965 615516115151 724136606060 879308735930 1231032230302 1758617471860 2462064460604 3077580575755 6155161151510 12310322303020