Base | Representation |
---|---|
bin | 11011100011110101101000… |
… | …111010000100010110000111 |
3 | 120220011120021112200021211210 |
4 | 123203311220322010112013 |
5 | 111341401121210104111 |
6 | 1105443041532302503 |
7 | 34350064406351151 |
oct | 3343655072042607 |
9 | 526146245607753 |
10 | 121210032113031 |
11 | 35691982209304 |
12 | 11717396611a33 |
13 | 5283098266824 |
14 | 21d084dab9ad1 |
15 | e02e3ee440a6 |
hex | 6e3d68e84587 |
121210032113031 has 16 divisors (see below), whose sum is σ = 168082840323200. Its totient is φ = 77633569933920.
The previous prime is 121210032113029. The next prime is 121210032113039. The reversal of 121210032113031 is 130311230012121.
It is not a de Polignac number, because 121210032113031 - 21 = 121210032113029 is a prime.
It is a super-2 number, since 2×1212100321130312 (a number of 29 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 = 121210032112989 and 121210032113007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121210032113039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7701735181 + ... + 7701750918.
It is an arithmetic number, because the mean of its divisors is an integer number (10505177520200).
Almost surely, 2121210032113031 is an apocalyptic number.
121210032113031 is a deficient number, since it is larger than the sum of its proper divisors (46872808210169).
121210032113031 is a wasteful number, since it uses less digits than its factorization.
121210032113031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15403486206.
The product of its (nonzero) digits is 216, while the sum is 21.
Adding to 121210032113031 its reverse (130311230012121), we get a palindrome (251521262125152).
The spelling of 121210032113031 in words is "one hundred twenty-one trillion, two hundred ten billion, thirty-two million, one hundred thirteen thousand, thirty-one".
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