Base | Representation |
---|---|
bin | 111000110111110010… |
… | …0110111100101100011 |
3 | 102200020112001122112222 |
4 | 1301233210313211203 |
5 | 4000111020121011 |
6 | 132034535341255 |
7 | 11552343354041 |
oct | 1615744674543 |
9 | 380215048488 |
10 | 122131020131 |
11 | 4788286008a |
12 | 1b80552182b |
13 | b694846623 |
14 | 5ca8389391 |
15 | 329c0e8ddb |
hex | 1c6f937963 |
122131020131 has 8 divisors (see below), whose sum is σ = 124484841984. Its totient is φ = 119788542720.
The previous prime is 122131020107. The next prime is 122131020133. The reversal of 122131020131 is 131020131221.
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 122131020131 - 234 = 104951150947 is a prime.
It is a super-2 number, since 2×1221310201312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (122131020133) 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, 2814371 + ... + 2857436.
It is an arithmetic number, because the mean of its divisors is an integer number (15560605248).
Almost surely, 2122131020131 is an apocalyptic number.
122131020131 is a deficient number, since it is larger than the sum of its proper divisors (2353821853).
122131020131 is an equidigital number, since it uses as much as digits as its factorization.
122131020131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5672221.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 122131020131 its reverse (131020131221), we get a palindrome (253151151352).
The spelling of 122131020131 in words is "one hundred twenty-two billion, one hundred thirty-one million, twenty thousand, one hundred thirty-one".
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