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12331321300 = 2252123313213
BaseRepresentation
bin10110111110000000…
…10000011111010100
31011211101120000201201
423133000100133110
5200223304240200
65355343002244
7614403334024
oct133700203724
934741500651
1012331321300
115258789231
122481899384
1312169aab2c
1484da25a84
154c28b9c6a
hex2df0107d4

12331321300 has 18 divisors (see below), whose sum is σ = 26758967438. Its totient is φ = 4932528480.

The previous prime is 12331321279. The next prime is 12331321339. The reversal of 12331321300 is 312313321.

It can be written as a sum of positive squares in 3 ways, for example, as 90554256 + 12240767044 = 9516^2 + 110638^2 .

It is a super-2 number, since 2×123313213002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61656507 + ... + 61656706.

Almost surely, 212331321300 is an apocalyptic number.

12331321300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331321300 is an abundant number, since it is smaller than the sum of its proper divisors (14427646138).

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

12331321300 is a wasteful number, since it uses less digits than its factorization.

12331321300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123313227 (or 123313220 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12331321300 its reverse (312313321), we get a palindrome (12643634621).

The spelling of 12331321300 in words is "twelve billion, three hundred thirty-one million, three hundred twenty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 123313213 246626426 493252852 616566065 1233132130 2466264260 3082830325 6165660650 12331321300