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12000102121 = 79717673199
BaseRepresentation
bin10110010110100001…
…10000011011101001
31010222022022100102201
423023100300123221
5144034011231441
65302431500201
7603242120320
oct131320603351
933868270381
1012000102121
1150a8821377
1223aa987661
13119319c157
1481ba470b7
154a3790c31
hex2cb4306e9

12000102121 has 8 divisors (see below), whose sum is σ = 13855788800. Its totient is φ = 10179762048.

The previous prime is 12000102089. The next prime is 12000102131. The reversal of 12000102121 is 12120100021.

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 12000102121 - 25 = 12000102089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12000102098 and 12000102107.

It is not an unprimeable number, because it can be changed into a prime (12000102131) 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, 8835921 + ... + 8837278.

It is an arithmetic number, because the mean of its divisors is an integer number (1731973600).

Almost surely, 212000102121 is an apocalyptic number.

It is an amenable number.

12000102121 is a deficient number, since it is larger than the sum of its proper divisors (1855686679).

12000102121 is an equidigital number, since it uses as much as digits as its factorization.

12000102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17673303.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12000102121 its reverse (12120100021), we get a palindrome (24120202142).

The spelling of 12000102121 in words is "twelve billion, one hundred two thousand, one hundred twenty-one".

Divisors: 1 7 97 679 17673199 123712393 1714300303 12000102121