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12233231213 = 74142624499
BaseRepresentation
bin10110110010010100…
…00100101101101101
31011120112222112102112
423121022010231231
5200023201344323
65341520333405
7612102515060
oct133112045555
934515875375
1012233231213
115208381745
122454a74265
1311cc585768
148409b08d7
154b8e91178
hex2d9284b6d

12233231213 has 8 divisors (see below), whose sum is σ = 14321832000. Its totient is φ = 10229879520.

The previous prime is 12233231183. The next prime is 12233231233. The reversal of 12233231213 is 31213233221.

12233231213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12233231213 - 212 = 12233227117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233231233) 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 7 ways as a sum of consecutive naturals, for example, 21311963 + ... + 21312536.

It is an arithmetic number, because the mean of its divisors is an integer number (1790229000).

Almost surely, 212233231213 is an apocalyptic number.

It is an amenable number.

12233231213 is a deficient number, since it is larger than the sum of its proper divisors (2088600787).

12233231213 is an equidigital number, since it uses as much as digits as its factorization.

12233231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42624547.

The product of its digits is 1296, while the sum is 23.

Adding to 12233231213 its reverse (31213233221), we get a palindrome (43446464434).

The spelling of 12233231213 in words is "twelve billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 7 41 287 42624499 298371493 1747604459 12233231213