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12331213032 = 233513800543
BaseRepresentation
bin10110111101111111…
…10110000011101000
31011211101100112012210
423132333312003220
5200223242304112
65355340405120
7614402403255
oct133677660350
934741315183
1012331213032
115258714956
1224818467a0
131216970778
1484d9d842c
154c2897b3c
hex2deff60e8

12331213032 has 16 divisors (see below), whose sum is σ = 30828032640. Its totient is φ = 4110404336.

The previous prime is 12331212991. The next prime is 12331213051. The reversal of 12331213032 is 23031213321.

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, 256900248 + ... + 256900295.

It is an arithmetic number, because the mean of its divisors is an integer number (1926752040).

Almost surely, 212331213032 is an apocalyptic number.

12331213032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12331213032 is an abundant number, since it is smaller than the sum of its proper divisors (18496819608).

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

12331213032 is a wasteful number, since it uses less digits than its factorization.

12331213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513800552 (or 513800548 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12331213032 its reverse (23031213321), we get a palindrome (35362426353).

The spelling of 12331213032 in words is "twelve billion, three hundred thirty-one million, two hundred thirteen thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 513800543 1027601086 1541401629 2055202172 3082803258 4110404344 6165606516 12331213032