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102231120121 = 137963987559
BaseRepresentation
bin101111100110101110…
…0110001100011111001
3100202212122212222200021
41133031130301203321
53133332131320441
6114544143410441
710246245116614
oct1371534614371
9322778788607
10102231120121
113a3a0890729
1217990bb3a21
139842b18b70
144d3b4bd17b
1529d50523d1
hex17cd7318f9

102231120121 has 8 divisors (see below), whose sum is σ = 110108989760. Its totient is φ = 94355241552.

The previous prime is 102231120041. The next prime is 102231120137. The reversal of 102231120121 is 121021132201.

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

It is not a de Polignac number, because 102231120121 - 225 = 102197565689 is a prime.

It is a super-3 number, since 3×1022311201213 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102231120095 and 102231120104.

It is not an unprimeable number, because it can be changed into a prime (102231120161) 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, 390261 + ... + 597298.

It is an arithmetic number, because the mean of its divisors is an integer number (13763623720).

Almost surely, 2102231120121 is an apocalyptic number.

It is an amenable number.

102231120121 is a deficient number, since it is larger than the sum of its proper divisors (7877869639).

102231120121 is an equidigital number, since it uses as much as digits as its factorization.

102231120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995535.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 102231120121 its reverse (121021132201), we get a palindrome (223252252322).

The spelling of 102231120121 in words is "one hundred two billion, two hundred thirty-one million, one hundred twenty thousand, one hundred twenty-one".

Divisors: 1 13 7963 103519 987559 12838267 7863932317 102231120121