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102313231123 = 1032121146831
BaseRepresentation
bin101111101001001011…
…0000000001100010011
3100210002101101122210111
41133102112000030103
53134014141343443
6115000235342151
710251263054365
oct1372226001423
9323071348714
10102313231123
113a433173964
12179b45b1957
139856b3805c
144d48374d35
1529dc37169d
hex17d2580313

102313231123 has 8 divisors (see below), whose sum is σ = 103313639936. Its totient is φ = 101312958600.

The previous prime is 102313231093. The next prime is 102313231187. The reversal of 102313231123 is 321132313201.

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 102313231123 - 217 = 102313100051 is a prime.

It is a super-2 number, since 2×1023132311232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102313231094 and 102313231103.

It is not an unprimeable number, because it can be changed into a prime (102313234123) 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, 2161318 + ... + 2208148.

It is an arithmetic number, because the mean of its divisors is an integer number (12914204992).

Almost surely, 2102313231123 is an apocalyptic number.

102313231123 is a deficient number, since it is larger than the sum of its proper divisors (1000408813).

102313231123 is a wasteful number, since it uses less digits than its factorization.

102313231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68145.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 102313231123 its reverse (321132313201), we get a palindrome (423445544324).

The spelling of 102313231123 in words is "one hundred two billion, three hundred thirteen million, two hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 103 21211 46831 2184733 4823593 993332341 102313231123