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12230200321 = 31394522591
BaseRepresentation
bin10110110001111101…
…00000110000000001
31011120100021112211021
423120332200300001
5200021412402241
65341331345441
7612034662463
oct133076406001
934510245737
1012230200321
1152066a1579
122453a52281
1311cba64031
14840422133
154b8a930d1
hex2d8fa0c01

12230200321 has 4 divisors (see below), whose sum is σ = 12624722944. Its totient is φ = 11835677700.

The previous prime is 12230200291. The next prime is 12230200331. The reversal of 12230200321 is 12300203221.

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.

It is a cyclic number.

It is not a de Polignac number, because 12230200321 - 29 = 12230199809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12230200295 and 12230200304.

It is not an unprimeable number, because it can be changed into a prime (12230200331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197261265 + ... + 197261326.

It is an arithmetic number, because the mean of its divisors is an integer number (3156180736).

Almost surely, 212230200321 is an apocalyptic number.

It is an amenable number.

12230200321 is a deficient number, since it is larger than the sum of its proper divisors (394522623).

12230200321 is an equidigital number, since it uses as much as digits as its factorization.

12230200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394522622.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12230200321 its reverse (12300203221), we get a palindrome (24530403542).

The spelling of 12230200321 in words is "twelve billion, two hundred thirty million, two hundred thousand, three hundred twenty-one".

Divisors: 1 31 394522591 12230200321