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12100002113 = 42292861197
BaseRepresentation
bin10110100010011011…
…10110000101000001
31011020021021210110102
423101031312011001
5144240100031423
65320401012145
7605564215043
oct132115660501
934207253412
1012100002113
11514a154751
122418324055
1311aaaa9284
1482b00da93
154ac425c28
hex2d1376141

12100002113 has 4 divisors (see below), whose sum is σ = 12102867540. Its totient is φ = 12097136688.

The previous prime is 12100002011. The next prime is 12100002121. The reversal of 12100002113 is 31120000121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10676675584 + 1423326529 = 103328^2 + 37727^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100002113 - 224 = 12083224897 is a prime.

It is a super-2 number, since 2×121000021132 (a number of 21 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 = 12100002094 and 12100002103.

It is not an unprimeable number, because it can be changed into a prime (12100002163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426370 + ... + 1434827.

It is an arithmetic number, because the mean of its divisors is an integer number (3025716885).

Almost surely, 212100002113 is an apocalyptic number.

It is an amenable number.

12100002113 is a deficient number, since it is larger than the sum of its proper divisors (2865427).

12100002113 is an equidigital number, since it uses as much as digits as its factorization.

12100002113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865426.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12100002113 its reverse (31120000121), we get a palindrome (43220002234).

The spelling of 12100002113 in words is "twelve billion, one hundred million, two thousand, one hundred thirteen".

Divisors: 1 4229 2861197 12100002113