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12320223330 = 23519912891601
BaseRepresentation
bin10110111100101011…
…11011000001100010
31011210121200012011210
423132111323001202
5200212434121310
65354305050550
7614210112312
oct133625730142
934717605153
1012320223330
115252499158
12247a026a56
1312145c359c
1484c377442
154c1926820
hex2de57b062

12320223330 has 64 divisors (see below), whose sum is σ = 29758752000. Its totient is φ = 3264307200.

The previous prime is 12320223319. The next prime is 12320223337. The reversal of 12320223330 is 3332202321.

It is a junction number, because it is equal to n+sod(n) for n = 12320223297 and 12320223306.

It is not an unprimeable number, because it can be changed into a prime (12320223337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7694530 + ... + 7696130.

It is an arithmetic number, because the mean of its divisors is an integer number (464980500).

Almost surely, 212320223330 is an apocalyptic number.

12320223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320223330 is an abundant number, since it is smaller than the sum of its proper divisors (17438528670).

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

12320223330 is a wasteful number, since it uses less digits than its factorization.

12320223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 12320223330 its reverse (3332202321), we get a palindrome (15652425651).

The spelling of 12320223330 in words is "twelve billion, three hundred twenty million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 199 398 597 995 1194 1289 1601 1990 2578 2985 3202 3867 4803 5970 6445 7734 8005 9606 12890 16010 19335 24015 38670 48030 256511 318599 513022 637198 769533 955797 1282555 1539066 1592995 1911594 2063689 2565110 3185990 3847665 4127378 4778985 6191067 7695330 9557970 10318445 12382134 20636890 30955335 61910670 410674111 821348222 1232022333 2053370555 2464044666 4106741110 6160111665 12320223330