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103230131301221 = 2412837150983713
BaseRepresentation
bin10111011110001100100011…
…010011100110101101100101
3111112111201000100020012000112
4113132030203103212231211
5102012310302103114341
61003315133450422405
730513062613162521
oct2736144323465545
9445451010205015
10103230131301221
112a98a71aa08691
12b6b2836131a05
13457a73760cc22
141b6c517852d81
15be03bc89aaeb
hex5de3234e6b65

103230131301221 has 8 divisors (see below), whose sum is σ = 103695010840344. Its totient is φ = 102765553735680.

The previous prime is 103230131301217. The next prime is 103230131301293. The reversal of 103230131301221 is 122103131032301.

It can be written as a sum of positive squares in 4 ways, for example, as 25730966404900 + 77499164896321 = 5072570^2 + 8803361^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 103230131301221 - 22 = 103230131301217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103230131501221) 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, 74808140 + ... + 76175573.

It is an arithmetic number, because the mean of its divisors is an integer number (12961876355043).

Almost surely, 2103230131301221 is an apocalyptic number.

It is an amenable number.

103230131301221 is a deficient number, since it is larger than the sum of its proper divisors (464879539123).

103230131301221 is a wasteful number, since it uses less digits than its factorization.

103230131301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150986791.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 103230131301221 its reverse (122103131032301), we get a palindrome (225333262333522).

The spelling of 103230131301221 in words is "one hundred three trillion, two hundred thirty billion, one hundred thirty-one million, three hundred one thousand, two hundred twenty-one".

Divisors: 1 241 2837 683717 150983713 36387074833 428340793781 103230131301221