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102312221441 = 4319312328259
BaseRepresentation
bin101111101001001001…
…0001001101100000001
3100210002022111100202212
41133102102021230001
53134013412041231
6115000201551505
710251251350613
oct1372222115401
9323068440685
10102312221441
113a432644311
12179b41a5595
139856873601
144d48190db3
1529dc22242b
hex17d2489b01

102312221441 has 8 divisors (see below), whose sum is σ = 105234027360. Its totient is φ = 99415072512.

The previous prime is 102312221423. The next prime is 102312221443. The reversal of 102312221441 is 144122213201.

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-102312221441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102312221443) 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, 6155831 + ... + 6172428.

It is an arithmetic number, because the mean of its divisors is an integer number (13154253420).

Almost surely, 2102312221441 is an apocalyptic number.

It is an amenable number.

102312221441 is a deficient number, since it is larger than the sum of its proper divisors (2921805919).

102312221441 is a wasteful number, since it uses less digits than its factorization.

102312221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12328495.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 102312221441 its reverse (144122213201), we get a palindrome (246434434642).

The spelling of 102312221441 in words is "one hundred two billion, three hundred twelve million, two hundred twenty-one thousand, four hundred forty-one".

Divisors: 1 43 193 8299 12328259 530115137 2379353987 102312221441