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12233921042 = 272111732
BaseRepresentation
bin10110110010011001…
…01101001000010010
31011120121021120200202
423121030231020102
5200023340433132
65341543215202
7612111420200
oct133114551022
934517246622
1012233921042
115208802a52
122455147502
1311cc767745
14840b10070
154b907a762
hex2d932d212

12233921042 has 18 divisors (see below), whose sum is σ = 21348854613. Its totient is φ = 5242639752.

The previous prime is 12233921027. The next prime is 12233921057. The reversal of 12233921042 is 24012933221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12233921027) and next prime (12233921057).

It can be written as a sum of positive squares in 2 ways, for example, as 12221523601 + 12397441 = 110551^2 + 3521^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=78211.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12233920996 and 12233921014.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1089368 + ... + 1100540.

Almost surely, 212233921042 is an apocalyptic number.

12233921042 is a deficient number, since it is larger than the sum of its proper divisors (9114933571).

12233921042 is an frugal number, since it uses more digits than its factorization.

12233921042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362 (or 11182 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 12233921042 in words is "twelve billion, two hundred thirty-three million, nine hundred twenty-one thousand, forty-two".

Divisors: 1 2 7 14 49 98 11173 22346 78211 156422 547477 1094954 124835929 249671858 873851503 1747703006 6116960521 12233921042