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10232130231221 = 411009247338109
BaseRepresentation
bin1001010011100101101001…
…1111001101101110110101
31100020011220202012210120112
42110321122133031232311
52320120400314344341
633432324205312405
72104150503634643
oct224713237155665
940204822183515
1010232130231221
113295470845518
12119307b865705
13592b68c83922
14275348534193
1512b26402aaeb
hex94e5a7cdbb5

10232130231221 has 8 divisors (see below), whose sum is σ = 10492082626200. Its totient is φ = 9972672514560.

The previous prime is 10232130231209. The next prime is 10232130231241. The reversal of 10232130231221 is 12213203123201.

It can be written as a sum of positive squares in 4 ways, for example, as 66171903121 + 10165958328100 = 257239^2 + 3188410^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10232130231221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10232130231241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123627686 + ... + 123710423.

It is an arithmetic number, because the mean of its divisors is an integer number (1311510328275).

Almost surely, 210232130231221 is an apocalyptic number.

It is an amenable number.

10232130231221 is a deficient number, since it is larger than the sum of its proper divisors (259952394979).

10232130231221 is a wasteful number, since it uses less digits than its factorization.

10232130231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247339159.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10232130231221 its reverse (12213203123201), we get a palindrome (22445333354422).

The spelling of 10232130231221 in words is "ten trillion, two hundred thirty-two billion, one hundred thirty million, two hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 41 1009 41369 247338109 10140862469 249564151981 10232130231221