Base | Representation |
---|---|
bin | 111000011010000001… |
… | …1001000110011101111 |
3 | 102120122220211112022110 |
4 | 1300310003020303233 |
5 | 3441034333301111 |
6 | 131351502015103 |
7 | 11515525514550 |
oct | 1606403106357 |
9 | 376586745273 |
10 | 121132322031 |
11 | 47410046456 |
12 | 1b586b77493 |
13 | b565973bc6 |
14 | 5c1189a327 |
15 | 323e5c35a6 |
hex | 1c340c8cef |
121132322031 has 32 divisors (see below), whose sum is σ = 195765470208. Its totient is φ = 65123562240.
The previous prime is 121132322023. The next prime is 121132322033. The reversal of 121132322031 is 130223231121.
It is not a de Polignac number, because 121132322031 - 23 = 121132322023 is a prime.
It is a super-2 number, since 2×1211323220312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 121132321989 and 121132322007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121132322033) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2026206 + ... + 2085131.
It is an arithmetic number, because the mean of its divisors is an integer number (6117670944).
Almost surely, 2121132322031 is an apocalyptic number.
121132322031 is a deficient number, since it is larger than the sum of its proper divisors (74633148177).
121132322031 is a wasteful number, since it uses less digits than its factorization.
121132322031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4111431.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 121132322031 its reverse (130223231121), we get a palindrome (251355553152).
The spelling of 121132322031 in words is "one hundred twenty-one billion, one hundred thirty-two million, three hundred twenty-two thousand, thirty-one".
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