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12233421401 = 23531887887
BaseRepresentation
bin10110110010010101…
…10011001001011001
31011120120100012022112
423121022303021121
5200023223441101
65341524402105
7612104236415
oct133112631131
934516305275
1012233421401
1152084a1623
122454b46335
1311cc6211b6
14840a1dd45
154b8ecc6bb
hex2d92b3259

12233421401 has 4 divisors (see below), whose sum is σ = 12765309312. Its totient is φ = 11701533492.

The previous prime is 12233421373. The next prime is 12233421413. The reversal of 12233421401 is 10412433221.

12233421401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10412433221 = 59176481919.

It is a cyclic number.

It is not a de Polignac number, because 12233421401 - 26 = 12233421337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 531887887 = 12233421401 / (1 + 2 + 2 + 3 + 3 + 4 + 2 + 1 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12233421701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265943921 + ... + 265943966.

It is an arithmetic number, because the mean of its divisors is an integer number (3191327328).

Almost surely, 212233421401 is an apocalyptic number.

It is an amenable number.

12233421401 is a deficient number, since it is larger than the sum of its proper divisors (531887911).

12233421401 is an equidigital number, since it uses as much as digits as its factorization.

12233421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531887910.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12233421401 its reverse (10412433221), we get a palindrome (22645854622).

The spelling of 12233421401 in words is "twelve billion, two hundred thirty-three million, four hundred twenty-one thousand, four hundred one".

Divisors: 1 23 531887887 12233421401